It still removes Giphy as a "competitor". Let's say that Facebook bought all competing messenger programs, but then disabled them in the UK because it was anti-competitive. Well, then the only option left is to use Facebook Messenger.
Giphy isn't necessarily a direct competitor (and we might disagree with the UK regulators on their assessment of the merger), but just shutting off Giphy in the UK probably wouldn't do what they want. They might want Giphy willing to sell their data to other parties that are competitors to Facebook. If that's the business value of Giphy, merely disabling it in the UK still gives Facebook the worldwide power of Giphy and it would be hard for a NewGiphy to compete with the only advantage being "we have UK data."
It's also up to the UK to determine if such a remedy would satisfy them. Facebook can't disable Giphy and then say "you don't have jurisdiction anymore." That's not how it works. Facebook could pull out of the UK by closing its offices there, but pulling out might involve also not selling ads to UK-based businesses (before Brexit, there's the possibility that Facebook could lean on the common market to continue selling ads).
Basically, disabling Giphy in the UK (or even worldwide) doesn't really solve the issue.
Giphy isn't necessarily a direct competitor (and we might disagree with the UK regulators on their assessment of the merger), but just shutting off Giphy in the UK probably wouldn't do what they want. They might want Giphy willing to sell their data to other parties that are competitors to Facebook. If that's the business value of Giphy, merely disabling it in the UK still gives Facebook the worldwide power of Giphy and it would be hard for a NewGiphy to compete with the only advantage being "we have UK data."
It's also up to the UK to determine if such a remedy would satisfy them. Facebook can't disable Giphy and then say "you don't have jurisdiction anymore." That's not how it works. Facebook could pull out of the UK by closing its offices there, but pulling out might involve also not selling ads to UK-based businesses (before Brexit, there's the possibility that Facebook could lean on the common market to continue selling ads).
Basically, disabling Giphy in the UK (or even worldwide) doesn't really solve the issue.