Maybe but that in and of itself would undermine the idea that you can (very theoretically at this stage) take out the existing M.2 modem card and put a random M.2 modem card in, where you yourself could in theory have written the necessary interface code to run in the Librem 5.
True freedom to replace and/or upgrade as you see fit would mean that the whitelist is thrown away.
I have no idea what reality is.