https://blockstream.com/2019/05/08/en-liquid-new-members-and-integrations/
Tether (USDT) and Stably (USDS) have revealed plans to launch their stablecoins on Liquid.
So thats why Adam & co are trying to protect usdt
The level to which BS was able to work against the interest of BTC holders is one of the most breathtaking sights in crypto.