I don't buy it.

For one thing, the Uncertainty Principle is as well validated as any scientific theory and time is a fundamental concept there. Reality seems to be realized in the present out of all of its potential states.

Another issue is consciousness. The best explanation I've heard for why consciousness exists (which came from Brett Weinstein) is that it does something to improve survival. The ability to consider different options and have preferences about outcomes makes more sense in a world that is not fully deterministic.