Glad that worked out the way it did. That could have been so much worse!
Yeah it could have.
My reasoning for posting is to point out the importance of oil pressure\volume delivery to the cyl head components that will affect the VCT system as well as chain tensioners\timing chains & camshaft journals just as you're saying from a real-world experience that documents this (from just 1 lash adjuster losing oil control). The oil pump upgrade is the most easily recognizable part that can regain\enhance oil pressure\volume delivery w\o having to do a full engine rebuild to regain lost oil clearances from worn bearings\journals creating excessive leakoff\windage, but we also either seem to don't know of or recognize the importance of other components that also can\will affect oil pressure\volume delivery to critical components that should be considered at the same time.
These new Ford redesigned Modular 3V cam roller followers are 1 of them. For Ford to go back & redesign a part for an engine series that had already gone out of production should be a big red flag to inform all that this part should be upgraded in these 3V's at the 1st opportunity.......such as what the OP is doing now.
Any lost oil volume\pressure anywhere, at any point, can be detrimental to component longevity\operation. Ford recognized the original 3V cam follower design was a bad design (in other ways as well) & fixed it post-production run to cover the TON of 3V Modular engines equipped w\ it thus the TON of expected, upcoming failures resulting from them (if haven't had them already).
You also should check these for any structural flaws & replace them if any are noted. Here is a picture of 1 of mine w\ a noted flaw that I believe was instrumental in the other 1 breaking:
These cam followers had over 150,000+ mi on them, found 7 more of them w\ this same structural flaw, note that the camshaft lobe never made contact w\ any of the follower body on the broke 1 so the roller bearings hadn't failed prior break causing follower to lose 0 lash & get thrashed under cam lobe thus was strictly a structural failure &
I had already missed 1 opportunity to change them out & save myself of the potential failure issues when I swapped out cams just 8 months earlier. The new 3V design cam roller followers are made from better materials thus are much stronger & robust so much less prone to structural failure........
These original 3V cam followers w\ the large oiling squirt hole allowing excessive oil volume spray are also partly responsible for the excessive oil entry\loss thru the PCV return system (#8 cyl is where the DS valve cover oil shield opening to PCV valve is located so any excessive oiling sprayed up\slung off cam lobes at #8 cyl gets drawn into the PCV system from the passing CC PCV air flow volume increasing velocity into the back side of this shield). I noticed a marked reduction in PCV oil mist collection--was very small to begin with--to practically nil in my catch can post cam follower changeout to the new design since these redesigned cam followers redirect oil spray at the cam follower roller\cam lobe interface instead of just spraying up at the rotating cam lobes themselves hoping to splash lube the cam lobes & roller bearings in cam follower rollers so a lot less oil spray mist is slung up into this area off cam lobe rotation\spray from lash adjusters thru the large squirt hole in cam roller followers to get siphoned into PCV return system thus IM & more oil volume is directly supplied to the roller bearings to prevent premature roller bearing failure (main failure issue w\ all original design Modular 3V cam roller followers that usually ends up cascading into more serious damage) while at the same time reducing the amount of oil volume needed to do this (very small oil squirt hole) which will increase oil volume\pressure delivery to the VCT system, chain tensioners, timing chains (chains are lubed thru the tensioners) & camshaft journals in cyl heads....very important components that improved oil pressure\volume delivery will also help.
There are several more good reasons outside of oil pressure\volume delivery improvement in cyl head oil galleries to replace these original 3V cam roller followers w\ the new redesign outright at the 1st available opportunity.......
So don't just think oil pump upgrade alone w\ these 3V's when doing any timing related work on them. The old Fram commercial line comes to mind, "You can pay me now or pay me later."
Don't be that guy OP................
My 2 cents