Are people really celebrating holidays EVERY SINGLE YEAR in-game though? Birthdays? Like, I guess if it's only happening once a RL year, cool, but on games that are 1:2 time or whatever - why? Why would you do that to yourself or be worried about missing an IC holiday or... why?
At least on Ares, it makes it relatively easy to backdate scenes so the time ratio really doesn't matter. Like, if you want to RP Christmas on Christmas, just.. do it.
Time is always going to be moving too fast for somebody out there, even if it's at a 1:1 or 2:1 or 3:1 or whatever. I definitely wouldn't play a game that's any slower than a 1:1 no matter what the reason, but I'm a HUGE proponent of excelerated time (within reason).
Characters always move WAY faster than normal life and I don't really want to sit around waiting a real life year for something to make sense on a normal time scale.
ETA: And the other side of this is that for most players, they will not stick around for a RL year in order to accomplish stuff.