Is Master Chief Collection still broken, after all these years?

I just read an article that said that the 360 Halo games were becoming backwards compatible, and it mentioned that the game is still plagued with bugs. Looking at the forums shows me that people are still having trouble with glitches that shouldn't have been there in the first place, almost three years after launch. Is that just an over exaggeration, or is MCC still one of the glitchiest games ever made?