It was very harsh and unfair I think. Sure he did some shitty things like holding WWF to ransom for half a million and thinking it was a one man show but he also did some positive things. He did get over big time - he was arguably the biggest star of the 80's/early 90's wrestling boom after Hogan and Macho Man. Those three entered mainstream popular culture - most newspapers worldwide have commented on Warriors death in the last few days.
For WWE to release a DVD burying him completely, which they have never done to anybody else, at a stage when he was gone from the business for years, was wrong. Many have done far worse to WWF and Vince personally but never got that treatment.
The three guys that gored him the most were "Million Dollar Man" Ted Dibiase, Bobby "The Brain" Heenan, and Bruce Prichard (aka "Brother Love"). Dibiase was the only one I saw at the HOF ceremony (Warrior acknowledged him by name and gave him props).
To be somewhat fair, Warrior had been bashing WWE and certain wrestlers there for years on the web. I guess WWE felt it was payback time.