They wrote the song, why on earth would DT hate Raw Dog all of a sudden?
Hate is a strong word, but similarly, you can't assume that they like all their songs just because they wrote it. JP was pretty critical regarding WDADU in a recent interview for example but they still feature the album live quite often.
It's not really something I've thought about yet, but it does feel like they're not acknowledging it or that they've dismissed it with all the comments about 'first DT instrumental in 10 years!' by lots of people, including members of the band.
That being said, I think that there would be just enough people in a DT audience to get pretty excited if the Raw Dog Riff kicked in, which might cause a ripple effect in the audience as heavy riffs normally get the crowd goin pretty nuts anyway. They mightent even need to play the whole song, just abridge it in some way or perhaps reference it somewhat like how Liquid Tension material has been referenced in certain songs or solo spots in the past. Maybe a section for it in some sort of instrumedley? Dam it JP why you no like medleys, haha.