For Falls, as long as the bleed is not insane, they can still chip away at enemy squads and gain vet. Perhaps, the question we should ask is whether to further reduce the cost of callin in Fallschirmjagers, or move some of their later vet bonuses to vet0, so that they don't have to wait that long to deal damage (now that they don't have the annoying infiltration mechanic anymore).
I would prefer moving a latter vet bonus to vet 0 rather than another cost reduction. My rationale is, even late game Fallschirmjägers dropping in to face vetted Allied infantry would be useful. A cost reduction wouldn't help in that situation.
There have been a lot of moving parts concerning current Fallschirmjäger vet. This is what I have:
Vet 0: Received accuracy improved from 0.87 to 0.83
Vet 1: Unlocks the 'Blendkörper 2H Frangible Smoke Grenade' ability
Vet 2: -29% received accuracy, passive cloak
Vet 3:
Vet 4: passive healing
Vet 5: 14.3% weapon range +15% accuracy
If the above is an accurate representation of the current Fallschirmjäger vet situation and we don't want to add more vet bonuses to the unit, how about moving one of the +15% accuracy to vet 0? I can't see moving anything else without weakening the current vet levels, i.e. making them pyrrhic, unless you add a new vet not already on the unit (probably OP).