Net neutrality rules

"At a packed meeting of the Federal Communications Commission (FCC) in Washington, the watchdog’s commissioners voted three to two to dismantle the “net neutrality” rules that prevent internet service providers (ISPs) from charging websites more for delivering certain services or blocking others should they, for example, compete with services the cable company also offers." (The Guardian.)

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I've understood that free flow of data and information in the Internet is somehow limited or even blocked by the FCC's decision to allow additional charging for the services which used to be free of charge.

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Is my understanding correct?

(Is there any other way to express the cited sentence so it could be more easily understood? Is it possible to say it in plain English?)