Yes, I think specifically because of that 1” gap. Things are going to fall down there all the time, going to need a skinny broom handle to fish the stuff out, if something spills down the cabinet or onto the floor— forget being able to clean it, imagine the dust and grime. I would say yeah, a 1” gap is going to be awful to clean and maintain.

Good thought but a 1” gap is not big enough to fit a hand. The outlet would have to be right at the front or else it would be functionally useless.