First, this makes me sad. Coming back to the cabin at the end of the night to a fresh room, empty trash can, fresh towels, towel animals, ice, etc always felt so special.
Second, I can see calling for towels or ice and getting nothing but a ring with nobody answering, being put on hold, etc. Then waiting too long before items are delivered. Lots of hassle for stuff that use to just show up at night.
And yes I need ice and more towels each night. Caribbean heat and changing clothes from pool to beach to lunch to dinner etc all requires a lot of showers.
Then there are people who have plates of half eaten food still in their cabins from hours before. Sometimes the best way to get the smell out is when staff is cleaning and has door proped open for 5 minutes. It's a good airing out time.
Basically I just see this new system as a hassle and not so special anymore. Plus maybe a little gross. Your only as clean as your neighbors.