Well, I live in the Netherlands so presumably I’ve never had any other RTD than the European-produced version. I don’t recognize these descriptions of watery, gritty or sour tasting drinks. Sure, the taste and texture are a little different from the Huel powder but they’re still tasty and creamy.
Sounds to me like there must’ve been a bad batch or it went bad in storage, there’s nothing normally wrong with the European RTDs…
P.S. I also have no idea why the bottles would be painful to drink from. Never had any issues with them.