Perhaps you can help solve the mystery based on other people's comments / experiences in the forum? Subjective bias?
Your comment will help proliferate the discussion.
Years back, many concluded that the CD was perfect given digital samping theory. More recently, people mistakenly concluded that higher bit-rates for lossy codecs meant better quality (more data).
Obviously, if lossless was truly lossless, there would hardly be need for so many variants - WMA Lossless, Apple Lossless, Meridian Lossless, FLAC. Presumably, like lossy codecs, all lossless codecs are not created equal.
Coding algorithms use some form of prediction to enable them to compress the file size. Improvements over time lead to increased efficiency (smaller file size) and improved performance. How well they perform can impact the audio quality which seems to be the conclusions many are offering here.
I'd encourage you to conduct your own investigation based on the various findings of other forum contributors.