He remains so well worthy of being taken seriously as a philosopher precisely because – unlike 98.9% of other writers/philosophers - he actually does concentrate on questions of supreme importance – what is the meaning of life? Why are we here? What should we be doing about it?
Wilson is messy, inconsistent, and contradictory. So is life. And anyone who tries to deal with life will be also. Wilson is much more of a philosopher than most professors of philosophy.