Well, if they're not planning on somehow revitalizing or incentivizing the content through roulettes, I don't really see a reason why the Minions shouldn't be 100% drop rate, since right now you have, say, a 30% rate on minions (and I'm being generous) that you have to lot with 15+ other people over.

And, when you inevitably lose your first few lots, you may have to wait an hour or two to even get into your next attempt at the Minion. Which will have a 30% chance of dropping, which you'll have to fight 15+ other people for.

See the problem here?