Because they can. The objective of any company is to squeeze as much profit as they can. It’s more lucrative to offer tiered services where you have to pay extra for no advertisements so they do it. If they realize enough people are leaving because of it they will reverse it.
The escalations we’re going to see over the coming months were going to happen with a Republican as President or Democrat. The past 13 months has shown Israel can get away with virtually whatever they want. They were never intending on stopping regardless of the outcome of the election.