I haven't cleared T10 yet, so I'm not familiar with the fight, but that's really unfortunate.

That bein said, Not bein able to clear 11 while it's still current progression isn't necessarily a reason to quit the game. I've bee too busy IRL to dedicate time to a raid static, and I've realized the farther I fall behind in RAID progression, the more OK I am with it. I do mostly DoL/DoH at the moment. I don't know how far you ae in the relic/zodiac quest, but I image you don't have ever Zodiak weapon + all 11 Luci's + pushing T11 XD

the good part about not doing it when i's RAID progression, is that RAID progression is prett close to being synonymous with asshole hehe. if ou have to do it NOW, then you need to learn patience. If you need people to work wit you, you should also work with other people who might require more patience. Eventually, you'll get it done.