A huge reason why the companies behind the scooters have been able to fund it is because they haven’t had to build any real support infrastructure since they can just take advantage of public sidewalk space. e-bikes have had to deploy actual infrastructure with parking and docks.
If we were coming from point zero, I wouldn’t see a huge reason for one or the other, but at this point, infrastructure already exists for bikes, so why spend more time and use more limited street and parking space and money for another mode of transit that doesn’t really solve any new problems?