No more hours doesn't mean no more accountability. In my old hall, the elders insisted that we must be regular, and therefore consistently following the same ministry schedule. No matter how many hours you got, you still were pressured to go to the SAME preaching group days/times as consistently as possible. Now that most people won't be handing in numbers, the congregation will now be more attentive to how visible you are in the ministry. Incidental and casual witnessing be damned - we better SEE you out there in the groups and at the carts. More snooping, more shame.
Also, more pressure than ever will be put on all members to either pioneer or auxiliary pioneer as much as possible. That way, they can gaslight you into accepting that you VOLUNTEERED to have your hours counted and have no one to blame for your exhaustion and stress but yourself.