Seems a little musically immature to knock the slap technique. Its just that, a technique. Its not their fault you don't like it. To accent what needs to be accented. Thats what, In my mind is what this elephant in the room needs to be seen as. A technique that bass players use for accents in the feeling of some music.
This is only my opinion but I love the way Melvin uses slap on this record. The best thing I think is if your playing slap, people dont notice it too much within the context of a record.This is my musical taste of course.