I’m not so confident this is the case, at least without a huge YMMV sticker on it. Not all companions are equal or suited to all encounters. Any encounter that has a “move away from the boss” mechanic, or even just “get out of this area”, especially for melee companions because you can’t direct them to a specific spot. Companions also generally don’t do quite the same dps as players, and have a harder time tanking more than one thing. Sure you can micro-manage them somewhat, and there are ways to get them out of bad stuff, but while you’re doing that, you aren’t necessarily operating at 100% yourself.
My anecdotal data is a bit mixed. My wife and I tried duoing Black Talon before they dropped it to 2 players. I had a Sith Warrior/Juggernaut with my ranged dps companion, she was a Sith Inquisitor/Sorcerer with a single heal ability and her melee tank companion. We were both level 10. We did fine on the trash, but the first boss (the droid, not the commando group) proved to be just a bit too much for us. It would be going fine, but our overall dps was low and eventually the probe droid adds would overwhelm us.
I also did a run through Black Talon with 4 players that was having issues with the commando group encounter. The 4th player eventually dropped group, the Inquisitor pulled out their tank companion, and we killed it easily.
Now maybe it all changes when you get some more tricks in your bag, but a companion is never going to be a replacement for a regular player until the AI gets to the point where it can do a lot more than just dps or tank a single target (the healing AI seemed pretty good though).
When I wish to go do a flashpoint, I will. Lack of a nifty button won’t stop me. If I wish to not do one , I will not.
I am not playing swtor for the lewt.
Flashpoint != Loot. For me at least, the leveling Flashpoints are a big part of the story. I won’t sit there and farm them until I’m tricked out completely, but I do like to do them once when they come up. They usually come around the time when you’ve finished a planet, and so it’s a nice break from questing to run them.
My experience with getting groups together, again, was somewhat mixed. I never had an issue pulling together a Black Talon group in beta. Hammer Station was a nightmare though. I had dps and tank spots filled for 20-30 minutes until a healer finally decided to whisper me. And when the group finally did get together, it felt no different socially than any other LFG runs I did in WoW. We got in the instance, we moved quickly, and we barely talked except for the tank telling us to stay out of the grenades on the one boss or to kill the adds first.
I do hope they give us some sort of LFG tool soon, even if it’s not cross-server and can’t port us to the entrance. Standing around in Fleet spamming general for 30 minutes wondering if you’re going to ever fill the group is simply no fun.