And then you'll end up with extremely early rush of shock units or massively inflated tech costs.
How so?
Why would I wan't to have healing before units though if I can use cheap end effective sturmpio medical crate?
If you went Battlegroup you wouldn't.
The point would be to give Mechanized cheaper access to Battlegroup medics. At the moment they've got to buy the truck, the building and the medic upgrade to do that. This would cut out the building cost.
Is that necessary at the moment? Probably not. Pre-DBP Mechanized was dominant over Battlegroup much like Battlegroup is now dominant over Mechanized. That tells me the tradeoff of relying on crates isn't a dealbreaker.