There is nothing Jaeger Armor about an AT strafe that kills tanks? lol It's actually a pretty good swap. Great synergy with both Reigal Mine and Recon Run to kill immobilized tanks or repairing tanks spotted by plane. You don't need AP round with Elephant in doctrine that penetrates everything... I do think that Recon Plane is kind of superfluous with spotting scopes in doctrine but Jaeger Armor is already super meta so it's not like it needs more buffs by giving it a better ability than Recon Run. Stuka bomb definitely needs to go so the doctrine isn't anti howitzer.
It's not the at strafe it's the ai strafe they want to replace ot with.
And jaeger armors mean Hunting tank not exactly tank hunter but more like the armor thats jaeger.
I'm saying flairs would have to come from 251 HT. Sure the recon would be better but difficult(slightly) to use. And it fits the theme of a hunting armor better.