Just for the sake of a friendly debate, I'll take another side.
This was Frey and Henley's band. What they wanted is what they got. Period. Very few bands are democracies. It's almost always 1 or perhaps 2 members that run the show. Frey and Henley wrote 95% of the music and lyrics. Every body else was a contributing side man. Leadon left because they were getting away from country rock. Miesner left because he couldn't stand the pressure of having to sing his 1 hit and hit the notes. Felder left for a variety of reasons, including shooting his mouth off at a benefit and embarrassing Frey. The other was making the demand of having 2 of his own songs on the Long Run album. As was stated in the documentary, "the standards were high and his stuff didn't measure up". He over played his hand.
Joe Walsh is a total Pro. He was given an offer when the band reformed. He could have passed. Same for Schmidt. Both understood the dynamic and were paid quite well for the tours. Not as much as Frey and Henley, but they understood why.
As for the documentary, Frey and Henley agreed to do it under the condition that it be a warts and all film. These are not stupid guys. They knew just what was going to be shown. They knew how it would come across to some. I admire them for having the guts to do it. There really wasn't an upside for them personally (not including $) as I'm sure they knew how they would come across in certain parts.
As for honoring former members, all of them were invited to the Rock and Roll HOF ceremony and were treated nicely and appreciative of their time in the band and got to perform together.