... better or more excusable than the ones others made IS high-horsing. So.

Context is important and it is not mutually exclusive with excusing the deplorable song they made. Both can be true. You can provide the context to help explain the thought process behind why Tribe may have felt they were OK to release a (disgusting) song like this at 21 years of age in 1991 and still find it inexcusable and abhorrent to make such a song.