Step in the right direction. Personally I think two hour rotations with three maps would probably be the ideal balance of variety versus being small enough for players to learn/get in the groove with the maps and tailor their gear/weapon load-outs to that specific set, which is what Nintendo is going for.
(Although I think I read somewhere that Splatoon pre-loads its active maps, so the mostly unskippable Inkopolis News bits would have to be even longer to deal with having three For Fun stages and three For Glory stages queued up.)
Strongly oppose Map Voting. They gave us that chance during the Final Splatfest, and with it we managed to choose a selection of stages that included Kelp Dome. The Splatoon playerbase lacks the qualifications to exercise free will.