FW has its own pool, though it is plain and non-themed. There is a boat that circles Bay Lake and they can catch it to go back and forth from WL. I've watched many, many people come off of the boat wearing their swimwear, toting their beach bags and they weren't coming back from another pool.
It's a problem, but as long as Disney doesn't care (ie, WL & VWL guests don't throw hissy fits), then I guess it will continue.
And I agree that the closing of the water park at FW (River Country) has contributed to this greatly. I wish they'd at least open the pool portion of that. It would solve the problem overnight.