Whoh, I don't interpret anything in my response as blaming or attacking you, just asking why you thought what you did.
My apologies for coming across aggressively.
I interpreted your question as blaming Framework for limiting fixes to the new chassis, and wanted to know your source for thinking they were limited, as everything I saw indicated that they were not.
Does the Ars review I linked not indicate that you could fix your battery problems by upgrading the mainboard? (It also mentions that using the larger battery will be possible with a BIOS upgrade, which should further improve things).