I think Cronus needs his own area for one main reason, the reason being is that it is really annoying when people want to farm Tartarus and instead, their team just wants to do Cronus. It's annoying and it's confusing.
It would be so much easier if Cronus had his own area so people who want to do Tartarus can do Tartarus and people who want to do Cronus do Cronus. It'll also prevent players from having their time wasted too. For example: ''We can do full dungeon after Crouns'', *defeats Cronus, player leaves*. Like seriously?. I know I sound like the only one complaining but it would also be better in terms of communication too.