People may become more efficient or sloppier when asked to do more work for the same allotment of time and/or money.

Given my experience with these kind of hotel transitions to wall-mounted toiletry dispensers, I would say the hotels/housekeepers have become sloppier and that is why I encounter worse hotel toiletry-related service failures now than ever before.

Some more may start to carry a soap bar or two on their trips and maybe start with complaining and asking for goodwill gestures /compensation for toiletry-related service failures in their rooms, whether or not impacted by the toiletry-related service failures encountered.