Honestly, from what they said, I’d wager the vast majority of the playerbase won’t be able to do the content with just a group of two, either. If 20 years of WoW has taught me anything, it’s that no matter how bad or inexperienced I am at a game, there’s ALWAYS someone worse (often times substantially so).
The interviews made it sound more like two elite blasters could beat the content with just two mechanically, but that the content itself is actually tuned specifically for 4. The average goober isn’t going to flawlessly beat any mechanics checks, especially not whilst also beating the damage/survivability checks.
I suppose we’ll know in a week or so, but I’m betting most groups end up smurfing it on 1-2 difficulty tier lower than they normally play on. Doubt we’re gonna see a ton of highest difficulty torment players getting it done, let alone with pug groups, unless the content is a pushover (in which case duoing it should be easy)