Jaeger Infantry has been the most dominant pick for 1v1 by far since the Osttruppen nerfs.
I believe it was also the most vetoed commander in ML. Behind the scenes there have been many complaints and worries about it, in particular about camouflaged fausts, so that aspect has been addressed.
The problem isn't the camo or fausts. It's the sheer power of the doctrine as a whole and it's ability to answer every problem with incredibly effective solutions. Some gimmicky camo change is only going to be annoying and not actually dissuade people from picking this doctrine because it's still much stronger relative to it's peers. It's just a negative quality of life change, hell just remove the passive camo and make the JCS have to upgrade Ambush Camo if you really want to go that route.
There are several real ways you could hinder the power level of this doctrine. Look at instead replacing either Stuka CAS or Light Artillery Barrage with a weaker ability, look to nerf the actual ability of the Jaeger Command Squad, make the Jaeger Command Squad more expensive, make the Jaeger Command Squad come later, make it so ambush training doesn't allow all your infantry the ability sprint without the upgrade.
Any one of those would have made sense because it tackles a core part of the doctrine and attempts to bring it's power level in-line with other doctrines. From drastic to minor at least any of those would make sense instead of some half-baked niche camo detection change with no logical constant to any other camo in the game.