I see. I made this point somewhere else in this thread, but there's no lawsuit threat because of the terms of service (just arbitration), and if someone were a big fish but asleep at the wheel for the last few months, Coinbase could easily make them whole quickly by just manually sending them the BCH they wanted. Engineering full support as they're doing almost surely costs more than any conceivable loss customers could suffer in the interim (assuming anyone with a nontrivial balance takes responsibility for their actions or inaction).