I don’t know that non-lawyers need to figure out exactly what it means, but in an ideal world: if you pay for something that includes a continuation of services and the services stop continuing, you should be compensated fairly. I am not smart enough to word that in a way that can’t be worked around, “gotcha’d”, etc. but I’m guessing the spirit of the rules is fairly common ground for anyone who isn’t trying to rug-pull a service out from under those they sell it to.