You're right but it's not a drop-in replacement: obviously being passively cooled into such a small device does not make it useful for constantly sustained performance. I'm confident aptly designed hardware surrounding those chips could have the characteristics we're looking for, but there are multiple barriers to break, such as a software <-> hardware synergy that is lacking for laptops, desktops and servers on the ARM side of things, as well as the current platform being largely good enough, so there's really no incentive (yet). IOW it's too esoteric right now to be of value, although some have tried, such as Scaleway, but that's not A11, and we all know where non-Apple ARM performance stands currently.