While you wait coin added to Poloniex or Mintpal you may loose all profit - like with whitecoin or asiacoin.
I agree with u... The timeliness is the most important thing in this context of hundreds new altcoins!
On another small multipool i gained half btc in a while even wout to notice it...
When WC exploded i could notice my rig was mining it via mpool since already 2 days!
Good surprise!