My first language isn't english, but I understand what he's saying, he's saying that the way raid works, the DPS's are too intense (they are) that healers and tanks have the need to adopt and basically stop doing their role and help DPS, so tanks have to dps hard besides tanking and obviously at least one of the healers and a reason why now people is being rejects certain jobs, when binding coil of bahamut was mainly about mechanics and a few DPS checks but not hard enough that even tanks and healers had to focus hard on this. Alexander is basically just a bunch of DPS checks, and I find it boring compared CoB mechanic wise.