I think what makes it tricky is that we haven't gotten to peak crowds yet but likely will in the coming months, so hard to know how bad off-site bus transportation will be. This weekend (labor day) should be a good test so I'd recommend going on tripadvisor for the neighbor hotels a week from now and seeing what people say about transportation. But with all the distancing measures that are being used for buses/shuttles these days, I'd be really nervous about having only bus transportation to a park right now, especially non-disney transportation.
If you can splurge for Pop (or get a good deal on something like priceline or hotwire), you'd have the skyliner, which is awesome.