i get what you're saying and agree it can be a slippery slope but kendrick is a generational hooper and TPAB is his greatest finals performance.
TPAB appeals to non hip-hop crowds for its content, storytelling, layers and concepts revolving around the album. TPAB was praised by prince for being original while delivering an important message and he was supposed to be featured on it. i don't recall prince ever being featured on a rap album or even praising one.
that album was getting praises from hip-hop critics, non hip-hop critics, added to harvard's hip-hop archive (only 4 hip-hop albums in this category so far), won a grammy, praised by pop artists like taylor swift to legendary jazz artists to chuck D, KRS One, Dre, Nas and jay. saying TPAB transcends hip-hop isn't a bad thing because how many rap albums you know accomplished all of that? i don't care what cacs who know nothing about hip-hop have to say. i hear TPAB and can understand why it gets the praises it does and when artists such as prince and chuck D are saying TPAB is a breath of fresh air then it would make sense why other crowds praise the album as well.