Cause both factions have flyers ^^" And the mods are meant to work together anyway.
But dont worry, I'll soon release a version of both of the mods without the flying unit nerfs(even though Im not a fan of it, but eh, I like to please ^.^)

Just checked your workshop and noticed, that you already have srparate mod with major faction unit changes. Why not just keep major faction flying units changes in it and minor faction ones in that one?

Well, instead of revert you can pull it into same separate mod as nerfing. I'm not saying, that flying units rework isn't justified, just pointing out that major faction unit changes better be separated from minor.

As this mod aims for balance and diversity, I wouldn't do that.
Without the flying nerf, every flyer I buffed would likely need to be reverted and maybe even more. As it is, flyers and cavalry both offer great mobility, but with different niches.

Or better just release flying units nerf as separate mod.

that would be best

I feel it is necessary due to power budget concerns. It's hard to justify higher combat efficacy while they also have top-tier map movement, bar none. And they invalidate the supposed niche of many cavalry units by simply being better at their job.

Still, if you insist, I can release a version without the flying nerf.

reducing their map movement still feels unnecessary

Problem was that flying units were just kinda amazing compared to cavalry. The flying trait more than makes up for the 2 map movement, in my opinion - ignoring forest is huge and the ability to fly and see over obstacles makes them very valuable scouts.
Not to mention, many flyers in the game are not "scouts", they are far too costly for that - especially Haunts and Kazanji.
Reducing their top scouting ability allows room for combat-buffs to the units.

In minor factions, the only flying scouts are really arpuja. I may consider buffing them to 5 map movement... but that would turn them into one of the best - if not the best - scout in the game.

nerfing the mobility for flyers kinda counteracts the point of them imo, the ability to fly makes them good units for scouting in the absence of . . . well, actual scout units (guess I'm too accustomed to the Civilization series having a dedicated Scout unit) as it lets them ignore obstacles and even go over water, reducing their map movement hinders this utility of theirs, which is in direct contradiction of this mod's intent of promoting unit diversity instead of just using your Major Faction units if they already cover roles that the Minor Faction units would

Sure do hate the flying movement change. Feels a lot like an over reach if the point is to emphasize diversity.

I have, they've pretty much all been incorporated.

ELCP contains a few changes to units, I hope you've taken that into consideration.