Why are Statics so difficult sometimes?

[Alaray]

Because the static is so important that you need to take a stern hand with your friend, possibly to the point of kicking them, otherwise clearing this fight will be impossible. The whole skill threshold for this and organizational threshhold is so high, comparable to certain types of raiding, that you have to manage your friends as if they are working with you. In other mmos, it exists, but it seems to be much harsher here, comparable to the aforementioned pvp games.

I feel like in the event this causes a break of friendship, unless one party was particularly rude to the other, then it was a weak friendship to begin with.

Had I not been able to perform well on these fights, or learn them, or understand them, or execute them, I wouldn't want to stay in a static even if it's full of my friends. I'd rather excuse myself, understand I wasn't in line with the goal of the group, or the challenge of the content they wanted to do, and proceeded to follow their progress while remaining friends with them. I accepted the possibility the moment I signed up, and I was absolutely ready to own that possibility if it was the way things ultimately went. It'd suck, it'd probably be a confidence hit, but at the end of the day I'd be able to see from their perspective and understand the necessity. I'm very grateful it didn't play out that way and we've all been able to stick together and down things, but again, I was prepared to own it if I was holding the group back and leave the group from day 1.

I've known others who were asked to leave, or left a static, of their own accord because they felt/or knew that their performance was hindering the group as a whole. Yet, they remain friends.

You can remain friends. All it takes is a few ounces of maturity from your friends to understand the situation and respectfully speak to you through things. If they are unwilling to respect you, or the rest of the party, then I don't think they were valuable friends in the first place.