Khan had already accused them of abusing monopoly power and filed a lawsuit against them, and had a history of blocking acquisitions. At this time she also had a lawsuit in place seeking to undo the nearly decade old acquisitions of Instagram and Whatsapp.
The smart thing to do in that environment isn't to push the issue so that years later someone can't write that there wasn't an official challenge. It's to read the room and abandon the deal.
Couldn't you just blame any business non-decision on fear of regulation?
"We were prevented from building a proper Windows phone because we already had such large market share on desktop, and already had an anti-trust against us so our hands were tied"
> The FTC didn’t bring a challenge, but nevertheless, in 2024, Amazon and iRobot called off the deal.