I don't think it's unreasonable to apply the same remedy to all AI companies. Sure, it would punish Google, but if companies would actually share their data set, the internet may not be so polluted with AI crawler bots I need to block on my servers.
Just as an example: in my country, all public transit information is shared publicly between operators, so anyone can effectively build a public transit navigation app. That includes the for-profit companies that actually run the trains. Had they kept their data silo'd up, like they were not that long ago, companies would need to make expensive deals or write elaborate scrapers to provide basic route navigation services. Thanks to regulation opening up the data for this system, everyone benefits, including the transit companies themselves, as their route planners now seemlessly integrate with routes offered by unrelated third parties.
By only hitting Google with regulations like those, I think we're building a situation where it's only a matter of time before a new Google appears and ruins the market again. Google has been financing Firefox and Safari for years now because they don't want to be the only browser, because being the only browser comes with all kinds of nasty antitrust regulations. If we selectively apply mitigations like these for competitive purposes (which I very much doubt are the real reason they're being suggested anyway), we'll just end up with some equivalent like "OpenAI sponsoring xAI and Claude so OpenAI doesn't control more than 80% of market share".