You may think it is harsh but in reality the majority of the firefights require you to split up and hold your ground to prevent team wipes. If I was on your team how would I know what was happening on your end? In one portion a boos teleports people to either the past or the future and the rest need to open the portal to rescue them... which portal are you in? Going through the gorgons maze you spot a gorgon approaching that the rest of the team hasn't noticed, how do you tell them to stop moving and hide? I'm not having a go at you or anything of such but these are questions that you will need to answer for a fireteam to take you along, otherwise you may end up causing your team to wipe a lot more than they want. I've played all manner of games before but never before have I been forced to use the level of communication that I have had to use in this raid. The onslaught of enemies is relentless and you really don't have the luxury of looking around the screen to see which guardian went down or cover multiple areas. Bungie said the vault of glass is not for everyone and if you want to take that as a form of discrimination its your choice, but those are but a few examples of the level of communication needed.