For the record, I think the overwhelming majority of the TMAists here also accept this and train according, but we're the minority. For every TMAist that goes beyond the dojo, so to speak, there's scores of dojo warriors who think the hour they spend twice a week in the dojo is more than enough.
That's not what the OP is saying though nor the hangers on. They are saying people who compete can't defend themselves out on the 'street'. It's nothing to do with techniques, practising or training, it's about the fact they think you can't defend yourself if you fight competitively.