Well, if one reads this ebuild script for CromeOS, it clearly states that bash is only used for building ChromeOS, but dash is embedded into the built image.
And ChromeOS was just an example how Google handles GPLv3 software in order to understand Jolla's concerns and strategy better (which is achieved now).
Demanding references to statements of the GPLv3 not to point at paragraphs within the GPLv3 does not make much sense (even if the "demanding" part is fully ignored). Especially as you completely fail to reference any of your claims with something within the GPLv3 license text!