In saying this, I'm not in favor of this regulation, actually the opposite - because imagine if this regulation passed for games and then passed for software in general next.
MMORPGs are software provided as a service, but this proposed regulation wants to make them playable even after the service provider discontinues service. If applied to software in general then that means all SaaS once it has any customers, then it has the obligation to make (and keep?) that software usable indefinitely.
And what if the reason you had to discontinue was out of your control? Eg. one of your critical service providers went out of business? Guess you'll have to recreate that service provider's whole service so your now open source software can still work on top of it before you can actually go out of business yourself.
It is just an absurd expectation for game companies to have to consider this. And in the end it just makes it harder for the smaller not-established game companies while giving the bigger companies another boost, concentrating their advantage.