Raiding: sneaky hunter

I realise there have been a few of these posts, but this annoyed me so had to vent;

I joined a group from LFG last night to try knock out a normal CE. I had the Crota CP but fancied doing the whole raid, and found a group that wanted (quote) "relaxed chill, mature players for friendly raid". Brilliant - just what I want. Quick message, friend request sent and chilling in orbit waiting for another player to join. 15/20 mins goes by until we get another person and dive in. Everything is going great - we make it through the abyss with no wipes (incidentally I'm one of two players to not die and make it into the light). Obviously no drops for me as I already had the CP (I only run with a Titan as don't have much time to play). Other people get shards, maybe couple of amour drops.

At the bridge CP one player ('X') leaves to switch character so we chill out again - in the mean time another player (call him Y) sees a gap and joins in his place. The party leader (call them 'huntress') greets him and then asks: Huntress: 'oh hey Y, X just left but he's coming back..... Have you got good weapons' Y: 'yer got a g-horn' Huntress... 'Ok. That's good. Very good. 2 seconds....'

Silence for a little while. I'm just sat on a rock polishing my gauntlets waiting for the opportunity to smash some thralls then BAM, the raid leader's hunter blade hits me between my shoulders and I'm kicked into orbit. Thought it may have been a connection error, but then I feel the second twist of the knife and I'm removed from friends list. No; 'sorry mastermole, your truth and icebreaker don't cut it against the horn,do you mind stepping out?' No; 'sorry man, thanks for your help, but we all raid together all the time, so do you mind making space?'. Nothing. Kicked into space like the lvl31 Titan trash I am. So much for a 'relaxed, chill mature raid'. Guess that's sneaky hunters for you; you just can't trust them.