Anunymint raises some good points. I am guessing similar to Peter Rizun. It points out a potential attack vector on segwit coins.
Dr. Peter Rizun - SegWit Coins are not Bitcoins
The video is worth watching even if you believe Segwit posses no risk.
https://www.youtube.com/watch?v=VoFb3mcxluYAll I read is Trilemma.