Yes, the late Mr. Ebert could be a dick sometimes. Nobody's perfect. I had a love/hate thing going with him and Gene Siskel for decades. Both championed the Laserdisc format back when VHS ruled the land, so it was hard for me to outright loathe them. ;)

Roger had enough clout to badger Disney into presenting it's animated classics in their proper aspect ratio when reissued to theaters. Ebert cried foul when Snow White was cropped to 1:85:1.

I have long wondered why he never voiced an opinion on the Special Editions, or Lucas' constant revisionism while burying the originals. If anybody could have brought public attention to the issue, it was Ebert.