Dale and TB are both pretty... Well, I hate to say "Terrible", but, they're people who, generally act without thinking much for other people.
The internet being what it is, everyone has a voice, and they can very well tell you how they feel about you. As such, it's an unfortunate reality, that, people are going to be dicks. I really wish they wouldn't be, but, they are.
Dale moving in the circles they do, it's really no surprise that the SJW mob has gone fully rabid on them for daring to defend a person like TB.
I think the article itself was kinda bad. I mean, TB is a guy that told a guy to "Get cancer and die" at one point. And... Hasn't exactly had the best track record with this stuff. I think glossing over that stuff was really untrue to the situation.
It'd be like making an article about communism and glossing over the millions of people that died due to it.