Your observations are very different than my own. Roger Waters' recordings, as with the later Pink Floyd recordings when he was still with the band, are some of the very best if not THE best in the R&R industry. "Amused to Death" is about as good as it gets and his previous releases are not that much behind. These have phenomenol dynamics, incredible tonal coherency including way out to the frequency extremes and resolution due to an ultra-low noise floor that very few artists ever come close to achieving.
What is it that has you define these a "terrible"? And what are your reference recordings for you to come to these findings? As for absolutely terrible recording quality, I find that U2 takes the gold medal.