Linux kernel is not directly exposed to userspace Android apps, so it is actually irrelevant.
In fact, starting with Android 7 they have started to lock down NDK apps that try to use APIs not listed as stable.
Re:Fuchsia is not Linux
by jacksmith21006 on Friday April 13, 2018 @12:28PM
(#16831509)
It is relevant as unless they replace both ChromeOS and Android kernels you lose the ability to run Android native on a ChromeOS box.
Re:Fuchsia is not Linux
by bitmapbrother on Wednesday April 11, 2018 @06:50PM
(#16816483)
With the introduction of Project Treble wouldn't a kernel swap be relatively easy providing the Treble interface contracts are met?
That would be lost which is a huge deal. The new gnu/Linux on ChromeOS would be fine as it runs on a VM and would still work.
Now they could move Android to using a VM but that it less efficient and most importantly takes more RAM and CBs do not normally have a ton of RAM.