I'm not entirely sure that not allowing them to just close your account, never talk to you again, and walk away with your money is "high customer support standards".
Their suggestion is a bit far reaching, but their point is that eventually the user count of a service reaches a point where due to network effects individuals aren't able to effectively shop around
Agreed completely. I think it's quite easy to imagine that a virtual version of this law could be enacted to require that they actually deal with these situations in a timely manner.