I didn't say there is no value in having perfect pitch! I said there isn't much value in having perfect pitch in a band setting, because everyone is supposed to tune to concert pitch, for the previously mentioned reason. Besides, application of scale intervals reinforces the relative pitch argument; once you recognize the sound of each interval RELATIVE to the root, you will be able to transcribe most of what you hear. Someone with perfect pitch may do it faster than others, making transcription a less time consuming task. To take it a further step, most genres of music have chord progressions that are common to that style (2-5-1, 1-4-5, etc), so if you know the genre, you can jump and start playing, based on the song form (AABA, ABA, etc).
So unless you live in a world where absolutely no sheet music is ever used, and no one ever plays using common chord progressions, then having perfect pitch would be an an advantage. But then you would have to stillhave to know where each note occurs on the fretboard and know which one to choose, based on the song you are playing.