Seriously... how long can one be entertained watching a big fish in a big bowl of water? Is that really entertaining?
Regarding Blackfish, it's been a while since I saw the movie but I remember thinking... It's pretty convenient to be a whistle blower of a company you've worked for, been a part of and at least tacitly agreed with *conveniently after you either got let go or decided to move on to something else. Something didn't feel right about their motives, it seemed at least hypocritical.
However, it wouldn't hurt my feelings if sea life parks shut down. Those places and Lego land are freaking torture.