Well, the ideas I wrote aren't necessarily set on stone.
I suggested tracking as a separate class but it could well be a skill much like digging acquired through a quest.


As for isolation, it's an interesting point, however I don't think the current alternative where you have 50+ people jumping on a monster at the same time is desirable.

I personally would prefer if people were split into smaller more focused groups, I think there would be more space for fun there than the current zergfest.
Not to mention it would also be easier for Square to balance monsters and maybe even design challenging mechanics around smaller group sizes, than an unpredictable number of players.
Rank S monsters imo should still be open to all but they could still be triggered by tracking. They do still need a power up though.