I have no way of proving this, but my FP group cleared it after some struggling and rethinking our approach a few times in about 50% Tionese 50% Columi gear. It is challenging at that gear level, but we enjoyed it and made good use of the drops we got.

Even though I know that this thread is going nowhere fast and will spend eternity bogged down in trolling and people arguing about the concept of probability instead of actually adding their data to the pool, I shall on a whim throw my hat into the ring. 1) Discussing the concept of "impossible" is irrelevant to this discussion. There is a non-zero probability that your arm will spontaneously drop off due to random subatomic particle movement, however this probability is absurdly low. This is what we call, for convenience, "impossible" 2) Discussing the concept of "random" is also irrelevant to this discussion. Computer programs do not generate random numbers, they generate an arbitrary number based on a seed input, in this case, unknown. It was once thought that bacteria were a spontaneous and randomly occurring phenomenon. Once more data were available, it became clear that they were not. 3) Due to there being a relatively large number of viable group compositions, if in fact loot distribution is skewed based on group composition, across a large number of groups of varying compositions, the skew will be obscured, moreso if the bias is generated by a transient influence (e.g. last two numerals of the server clock are even means there is bias, just as an arbitrary example). This means if Bioware were to look at loot drop metrics overall, it would appear to be pretty much pure RNG. Anyways, with that blathering out of the way, here are my records to the extent that I recall them. I have done a large number of solo runs through Normal flashpoints on each of my three characters. Across every single run, 3 in 4 loot drops were appropriate for my character's primary stat. As for hard modes, my usual group is Juggernaut, Marauder, Powertech, Operative. In ONE run, only Powertech gear dropped. In TWO runs, only a single piece of Willpower gear dropped. In every other run (I've lost count, quite a few), TWO OR MORE pieces of Willpower gear have dropped.

Xamek is correct. This was something Bioware looked at well before release. They tested builds of the game where companions might betray you and you had the option to slay them for it, but in practice virtually everybody did it, just to see what would happen, and when they found it was irreversible they would throw a tantrum. So yeah, the story had to suffer because Bioware decided to spare themselves the customer service headache of fielding thousands of complaints about OMG NO ONE TOLD ME HE'D BE GONE.