> Let it crash attitude is something I never understood. It's just not something you can do most of the time. If subscriber consumed 2MB and you let it crash in the middle of rating function you just "lost" 2MB. With couple of million subscribers on LTE that turns into very expensive error handling very fast.

Let it crash is the only sensible thing to do. Depending on the type of error, the 2MB could be absolute garbage. I would rather stop sending any message instead of sending potential wrong data without knowing.