Ehh, not “it” but it’s important if you want an agent to have access to all your “stuff”.

macOS is the only game in town if you want easy access to iMessage, Photos, Reminders, Notes, etc and while Macs are not cheap, the baseline Mac Mini is a great deal. A raspberry Pi is going to run you $100+ when all is said and done and a Mac Mini is $600. So let’s call it. $500 difference. A Mac Mini is infinitely more powerful than a Pi, can run more software, is more useful if you decide to repurpose it, has a higher resale value and is easier to resell, is just more familiar to more people, and it just looks way nicer.

So while iMessage access is very important, I don’t think it comes close to being the only reason, or “it”.

I’d also imagine that it might be easier to have an agent fake being a real person controlling a browser on a Mac verses any Linux-based platform.

Note: I don’t own a Mac Mini nor do I run any Claw-type software currently.