i'm curious- there is a lot of garbage on TV i don't like, but i take no personal interest in it- i just change the channel. frankly, if i had to have a take, i'd be glad it is on, since that means people who are different from me are wasting their money on that and not, say, contributions to right-wing 527s i disagree with.
mark cuban tried to do a show, and it may well be true that, in terms of numbers, the show will fail. but i would not bother telling anyone about this, nor would i want to ridicule him for it, unless it really got my gut. being "bad" wouldn't be enough, unless ABC specifically canceled a program i liked to run it.
so, please remind me why you take this so personally? do you find cuban a gross self-aggrandizer? there is an expression in sports, "player hater", and it can give many of us pause if we are open to constructive criticism.