I've read first and third person accounts of WWII crews re-joining a battle in a different tank to the one they started in, so I don't consider it particularly gamey.
I've always thought it was odd that it wasn't possible in CM:SF, given what else the crew can do. For example, in a game last night I used a (depleted) Abrams crew to raid a Stryker for its Javelin and all available ammo, then managed to knock out two tanks as a result. In fact, it's possible to bail crews at the start of a game, acquire Javelins, then put them back into their (original) tank, effectively giving them extra AT assets to carry with them for the rest of the scenario...
Anyway, really appreciated the DAR/AAR.
SLAP