I would seriously like them to fix this. Perhaps if enough people asked for it, they may put it in 2.3 along with making 24-man premades possible?
Ifrit HM also don't need a second tank.
Also I've seen quite a lot of people complaining about lack of tanks on the one hand and then turn around to laugh at newbie tanks, instead of encouraging and giving advice. Some of them are so bad I wouldn't want to tank for them. Game design is only part of the problem, one intolerant player is enough to shadow out 10 helpful players and give newbie tanks second thoughts. Especially when that one player is abusing the tank, nobody stands up for the tank---it then feels as if everyone agrees with the abuse.