“I don’t think [Bitcoin Unlimited] is a good idea,” Voegtlin said during the interview. “It’s really a big change; it’s a change in the structure of power in Bitcoin. It’s a very risky hard fork.” He went on to suggest that since the recent AsicBoost scandal, “a lot of people have changed their mind on this” and no longer support Bitcoin Unlimited.

The interview can be found here: https://epicenter.tv/episode/179/
The article: https://bitcoinmagazine.com/articles/electrum-developer-thomas-voegtlin-bitcoin-unlimited-not-good-idea/