The Americans are making things work with the Bradley. Why would we propose to bake that sort of nonsense into the organizational design when not pre-constrained by an in-service system?
And, why are you concerned about seats for “habitual attachments”? Those are the specialists that come company level when fighting conventionally. You talk of fat platoons, but call the US organization an abomination because it has not allocated seats for the fat. Meanwhile, that organization is designed to fight intimately with their carriers.