I would have been happier with something closer to the the "We Strike Hard" short or especially the one by Jhonen Vasquez, "Raph vs Don" if they wanted to stay with the more silly route. Invader Zim was beyond silly sometimes, but also had those episodes sprinkled in that were pretty intelligent and I very much enjoyed them.
I dunno... I don't HATE Rise, but you cant go into it comparing it to other series because if you do, you won't like it. It, by itself for what it is, isn't terrible, but it's also not doing the franchise any favors in my opinion.
Donatello is by far the best part of the series for me personally, but I don't hate the rest of them... I'm also not super stoked about them either. The series as a whole just can't hold a candle to the 2012 turtles. No way, but if you don't compare them... it's watchable.
You just gotta take it for what it is and eventually I'm hoping we'll get a more gritty series in the future. For now I'm at least finally starting to save money again.