Yes but don't you think making the times unlisted, unscheduled and (let's face it) completely cattywampus would provoke even more complaints? Especially since that makes it even more difficult for people to be able to make the events because they aren't announced.
Whether people play just for host events, or whether they play just to play and happen upon host events doesn't matter. People need to realize this isn't VMK anymore, it's MyVMK and it is going to be run (as it has been since day 1) as those that run it see fit. Sure they may base some aspects off of the original game and try to keep them similar, but in more ways than a few, this game is very different from VMK. If Dreams month in VMK was meant to reward players that are playing and it was unannounced, that's all well and dandy, but MyVMK's Dreams month has become a scheduled host event that happens twice a day. People don't come on unless there's an event going on anyway because there's nothing to do. It's in Beta, we get that, and because it's in Beta there's a lot missing, so don't expect a lot of people to play 24/7 when it's unfinished. It's just how it is, and how it's been since day 1. Once the residual excitement of having VMK back wore off a bit, more and more people became bored with what's available and that's normal. Host events are exciting times for people to play, that's just how it is.
In VMK the Host's and staff were paid to sit there and play this game all day. So they had a reason to be on, especially during specific events for Hosts, because they ran them. If we leave the event times up to the leisure of the staff, who's to say they won't forget to come on, or will even come on for a fair amount of time (30 mins would not be fair)? At least having a schedule designates them either 2 or 4 hr windows each day they're meant to be on, to be on for the event. I feel like if we take the schedule away and just run it the same way it was run in VMK there will be a lot more complaints than there are now.
I think the Dreams Squad events can be tweaked a little more and improved, but I definitely don't think taking the schedule away and leaving it up to the leisure of the Hosts/staff would be a smart way to run this event.