One of the problems in the US is that buses stop often and have really shitty doors. Often only 2 doors. And even worse, sometimes everybody needs to buy a ticket from the driver.
The buses are also smaller, with many fewer bendy-bus. So if you go to fewer stops, you could overwhelm individual buses.
So if you want shorter distance between stop you need to optimize the ingress/egress with lots of doors. And you need a fast accelerating bus, like an electric or preferably trolley bus. But the US does the exact opposite, short stops with bad buses.
But yeah, the US makes so many mistakes with buses, its actually crazy. Of course, many other make many of the same mistakes but usually only a few not all of them.
Canada is also making many of the US mistakes, but at least in large cities their buses see far more use then in comparable US cities. So they are doing better while still having some feeling North American.
So I agree, some amount of stop reduction does make sense in the US. And its attractive because its basically a 'zero cost' solution. But by itself its only a drop in the bucket.
The real problem is car priority in all aspects of design and its total primacy in the way of thinking.