'The Black Album' was actually well received by both critics and fans alike. The problem was that instead of standing as a shining example of how a band can develop and progress and grow over time, it later came to be seen as the identifiable point where they completely decided to change direction. Subsequent releases featured songs that didn't have the same bite or the same vision or the same energy they'd summoned before. Their self titled record was their 5th full length album. They've recorded another 5 since then, and they've all been terrible. "Metallica" was never my favourite record, but there were some decent tracks on it. It wasn't until I heard "Load" that I knew it was over for them. In all honesty, I do think that the 2 songs you mention should not have been included on the album, but it was obvious that they were going for a softer, more commercial approach that would win them new fans and get them greater exposure. They succeeded on both fronts, but lost the love and respect of a great many longtime fans.