The nice thing about the Skyliner is that it loads continuously, so even if the line is long, it moves quickly. And after you arrive at CBR, relatively few guests will be transferring to the Epcot line with you. That’s in contrast to the boat, which tends to have long lines after Fantasmic and may take several boat loads to clear. So if walking is out, Skyliner is your best option for no-cost Disney transportation. You do have the additional option for taxi/rideshare/Minnie Van from DHS to the front of Epcot, which might be quicker but comes at a price.