To those that keep saying "learn to play" and the like, I would like to point out that most people complaining about enrages have done the HM modes, have managed to make it in time (so the skill and the gear are there), but they just don't like it, as it is restricting and you can only do these with a certain group composition or with gear that is better than/equal to what you get from that flashpoint (so what's the point and where's the motivation?).
I think it's exactly the opposite of "fun"to have to tell one of your guild mates "you're not coming with us because you are not geared enough or the wrong class/spec", and then you don't do anything because the "right class" is missing at that moment. And you don't even have dual spec... And how is a guild supposed to help its members, if taking a mediocre player along, or a player that is not very well gearerd simply won't let you progress through a HM? Where is the team spirit? In saying "go grind your dailies, get geared, learn how to play and only then we can group"?
What I'm trying to say is that debates like this one can go on like forever, because people are (fortunately) different, each of us expect something else from a game and think it's fun to do different things. So, if an MMO like SWTOR wants to get more players or keep those they already have, they should give more options, a little something for everyone. So why not have more options, flashes scaled to the number of players and dual spec? Not to mention that, if one day I really feel like doing somehting solo, why not? If I'm willing to spend 4 hours in HM solo (with my companion), it's better for BW because I spend more time ingame and good for me because I'm doing what I want. This is a win-win situation.
From that to enrage timers that wipe a whole group in seconds and make flashes a dps rush...there's a looong looong way.