As a desktop user at least, this change seems like a strict UI downgrade from before. You've replaced the task lists from yesterday and the next few days with actual BLANK SCREEN SPACE. As a UI designer myself, this is a pretty inexplicable decision.

When I go to plan my day, I like to see what I accomplished yesterday and often like to shift tasks forward into the week to keep my day from feeling overloaded.

I would strongly suggest bringing back the weekly view as the "default" view.