I dunno, at least he's not Lucas-ing the series and re-releasing old episodes or movies with completely new stories. Honestly, the original cartoons weren't that good upon review (I watched them as a kid and thought they were great [obviously], went back when I was in my early 20s and definitely reversed my opinion). He's not really destroying anything, he's just adding his own schlock-y ideas to the progression of the series.
...also, "tough, edgy, funny and completely loveable.” ... ... jesus christ.
I'm not saying it wont be bad, but c'mon. They released a cartoon in the early 2000s that I enjoyed, and that version said Shredder was an alien, and honestly, it was justified by the series' story (and it actually sort of combined the Krang character with Shredder, what a twist!). Whatever.