Not trying to be harsh, I'm just saying.
There WERE some positives from the way Jim handled his business, as with the case of TMS, at least Lord Grade let him have free reign over the show and let him do whatever he wanted to, most execs always try to obtain as much of the creative control themselves to the point it's not the same show the creator had invented, but rather, the show the network thinks it wants to have.
But, at least back then, these people also willingly acknowledge that Jim was the visionary behind these things, whereas today, Disney is pretty much doing all it can to erase Jim's name from the Muppets altogether.