Myriad I think was sunk large in part due to the connection to Bryce Weiner and his Liberdad scheme that never panned out (as if there was even a real plan...),
don't remember if the team was involved but perception is reality. He is a 1-man coin wrecking crew.
Nah, Myriad never really had anything to do with him. He was the adamastor of Myriad, lol. It tanked back in the day for 3 reasons: Bitcoin tanked, Myriad's inflation was high compared to most alts, and I think Myriad supporters lost hope for a while when DGB copied it and claimed to be the original, then had a huge pump after some reward changing trickery and their 250k investment.
Also multi-algo has had some critical issues in the past, much like Bitcoin did in the early days.