just gonna say that after starting on DMM, I'm pretty much of the same stance as tenhou now.
that and newbies just need to learn how to manage instead of being spoonfed. the gold rush event on nutaku completely flipped my switch as I saw people who needed resources prioritize less necessary golds instead. they are pretty lucky we had so many breaks after that.

and fyi, me and tenhou are only about 1 month and a couple of days old on dmm. and we just got a perfect unit from the current star rush, though we only achieved 22* out of 27* max possible, thus missing out a couple of freebies given out as well as 20 levels on the event unit. admittedly it's due to our experience from having played nutaku aigis as well as help from other dmm players with regards to opinions and choices, as well as DMM having breaks during the period we started, but I think we did fairly well and just to prove the dmm event spam works just fine.

of course, the 100% drop rate on 1st clear helps a LOT.