I can see where you’re coming from with this suggestion, but I think it’s worth weighing the other side.
The Benderblock is already a defensive stronghold. It’s difficult to crack, having 2 funnel entrances, even with just the few factions that already spawn there. If Feldjäger were also spawning there, it would consolidate too much manpower into one area, making it nearly impossible for opposing factions to launch meaningful raids or civil war pushes.
The current spawn setup—while not perfect—at least forces the armed forces to spread out and defend multiple points. Yes, the Heer/Feld spawn can be vulnerable with a single ladder if attackers play it right, but that vulnerability is part of what keeps balance during uprisings. Without it, the attacking factions would have little chance of contesting the military, and civil wars could stall out before they really get going.