Underwater housing manufacturers must know this is a popular camera.
But we should question the ethics (or intelligence) of a housing manufacturer that is NOW releasing an underwater housing for a camera that will never perform well underwater.
You can sort of forgive the early-adopter housing manufacturers as they could not have known about the problem. And, you really can't expect them to fix something that's unfixable. Nor are the housing manufacturers financially robust enough to give a refund.
And, we should not be surprised that Sony is not interested in a problem that only effects a small part of their user base and is probably not fixable in firmware. They can't even express sympathy because that might attract class-action. At best, you can hope that they are listening and have told the engineers to make sure that it is not a problem in the next model. Any large electronics engineering company would behave the same.
Symptomatic of our times...