But what is the difference? Using the BLU party finder tool nets the same random people that a Blue roulette would... It's just that adding this roulette it would create somewhat of an influx of blue mages running their dungeons, thus it wouldn't be as barren as it is today. Plus the manual party finder would still be there.
Just to clarify: when I mean roulette and queue-able dungeons, I mean for parties only of Blue Mages