Earlier quoted context omitted.
Google open source engagement was already "throw over the wall" style before this. I assume things will only get worse now.
Fuchsia, like Chrome, has been open-source for years, and all commits and reviews as well as the bug tracker are public. It is a very different model from how Android releases work. (Disclaimer: I work on Fuchsia at Google.)
As for bootloader locking, Google releases some Android devices with unlockable bootloaders. Can we expect the same of Fuchsia devices?