The size of a pool has absolutely noting to do with how much you make with your hashrate. Zero. Nada. Nill.
It has nothing to do with total revenue, no. It has to do with understanding what's happening within Cloudhashing's walls. For example, the pool hash rate is 215 TH right now. Is that a new high? I remember 211. If it has increased, that means they've added hardware, which is useful information, because RRP does have an effect on total revenue.
True! The faster they deliver the rrp hardware the less you lose from them not delivering it in the first place.