The message they send in this way is more than clear, "even if you are hacked, the company will compensate you", which in some way encourages users to use their account as crypto storage.
While it's arguable how will the users get compensated, since in many cases it happens late or in the least favorable currency (I don't know if it's the case at Coinbase), indeed, people see they get compensated, people see that the withdrawal fees are big and then just keep their money there. Sad...