Let's say you're playing a game like Dark Souls. Are you going to complain if the game is too difficult for you and you can't access the final boss?
If a game has any sort of linear progression, there's no reasonable expectation that you should be able to immediately access it, just because you paid for it. If the game chooses to lock progression behind some kind of challenge, then it's up to you whether you're up for that challenge.
When EA advertised portal, they certainly intended for players to get XP when playing the game in a legitimate way. Yet it was used in an exploitative manner. They are fully within their right to ensure that exploits are fixed, even if that means that they have to adjustments.
I'm not sure why you're bringing up court, because that doesn't seem very relevant here. It's mostly a customer satisfaction issue. If they don't introduce a satisfactory solution, they may end up losing a few sales or they may see some people pursuing refunds.