I disagree. I liked that we got six identical sets back in those days. It meant you got what ever new part in all six colors. Plus the appeal was not just the Krana I think. Some of the best parts to use in MOCing came from the Bohrok. The claws gave you 12 different pieces that functioned mostly the same way with the same dimensions and connection points(though a few variations). That means a lot of options which is always good in MOCing.
I'm actually going to grab one that I think wasn't all that good. The usanui coulda been a better designed set. It had all these parts up front and then Takanuva hanging off of it at the back. Didn't really work.
A second set I really liked and thought it had a lot of potential if they had just made it more articulate, Mezeka and the Swamp Strider from 2008. Its claw legs only moved up and down. If they had used technic click joints there instead I think it would have been a lot better as a set.
I know this is kinda off topic but at least none of these sets were as bad as the Furno Bike. Furno didn't even fit on it properly and they put the handle bars not actually on the part of the bike that turned. Also it was a frame with armor slapped on. So given a little perspective there, I think all these mentioned sets aren't that bad.