We have a pretty bad track history in the Healer forums tbh. The general forum definitely looks like it sees more traffic from the community reps and/or influencers in general. It's much more likely for issues to be bubbled up from here imo. Especially considering that it's now been 2 months since launch and these issues still haven't gotten to the devs as of the last live letter. At this point it would be an improvement for most of us if they just acknowledged things, we don't even need them to fix it quickly.
The issue here is that the track record has been pretty poor when it comes to healers. Between changes to classes that make very little sense to it taking an entire 2 year expansion to fix completely broken healer mechanics (lilies). Adding to that a serious lack of communication between devs and the NA healer community over the past 4 years + their constant admission that they can't seem to balance the healers properly over these past 4 years and it's only natural that healers would be on edge and defeatist. After all, in my 4 years of playing I have yet to see any changes that so much as reflect that the design team plays healer in an optimized setting. It's not all bad though, afflatus skills are great imo, seraph is fun, etc.. etc.. But we've been in a constant cycle of poor changes being made, having to complain for months, only getting 30% of poor changes reversed and having to wait 2 years for the rest to hit only to have other weird changes to complain about. I think anyone would be anxious for change at this point if they were healer main.
Sadly there are a lot of repeatedly issued good suggestions in the healer forums that seem to go unnoticed.
This sounds mostly like you're talking about a dungeon situation. And probably leveling at that. There's currently no need for back to back addlos like this in lvl 80 content (even dungeons) and Recitation is better used on excog. There's also little need for back to back addlos while leveling though I can see this being a thing for player who aren't familiar with sch.
So if it isn't a bug then it's once again indication that the design team either aren't familiar with optimized play or don't care for it as much as their player base. I would be surprised if it were either. I like to assume that even if they're busy people, they would still get some good healers in to assess changes and this would have been something they would've been aware of, hence categorizing it as a bug.
When it comes to catalyze there is, currently, no good use for it outside of incredibly situational healing requirements (like someone other than a main tank going to take damage and shortly after having a raidwide you need to mitigate a LOT, none of the current content has that) or again, some very situational cases where you'd want the extra shielding on the tank and recitation wouldn't be better used on excog/indom. It just doesn't make sense in it's current iteration.