The accounts of Mick, John and Jeremy seem genuine enough. It's a shame that there was never a joint interview with the three of them and Peter in later years. There was going to be reunion gig, I believe in the 2000s but I remember reading somewhere that Peter backed out. It would be nice if one of them contacted Liam, I agree.
https://www.youtube.com/watch?v=mcZJCLce1cY
Liam also interviews Rainer Langhans of "the German Jet Set group" here
https://www.youtube.com/watch?v=sa36oA8L-6Y