I wouldn't worry too much about bending the chassis for the time being. The MTC-3 has only been on the market for a month and caster pointers and springs etc are not even really available on the market yet.
All I have read now are descriptions of bent chassis due to serious accidents (frontal or at high speed).
I have also seen normal 2mm carbon and aluminum chassis bolts stripped or bent. And that with impacts that didn't look bad. You often cannot visually assess the force of an accident (direction etc.)
The plates on the chassis (A2173F & A2173R) that lie under the wishbones probably have the exact purpose of preventing this. They distribute the load of an impact over 2 bolt holes instead of just one.
It should be no problem for third party suppliers to simply produce a 2mm thick carbon/aluminium chassis. Then you can also remove these connecting plates. Motor mount, bulkheads and even the servo mount are pinned anyway. It's not a problem than can't be solved pretty easily.