I dont think you guys even realise how much is changed since the first release. Hell, as early as opening day on May 25th, 1977, Lucas was in the studio with Mark Hamill tweaking the film! If he pointed out every change in teh commentary thats all teh commentary would be. Personally i dont really care--some changes i like, some i dont, and regardless no one can do anything about it so we might as hear about more interesting matters (such as the use of subtitles in Greedos scene, which was far more eventful in its day than changing greedo to fire first--or simultaneously or whatever it is now).
And for the record i am all for a CGI OT Yoda as well--as long as the OOT is available.