I guess people suspected the same when Fuji said that adding IBIS affects image quality so they aren't going to do it, or any other convenient excuse a manufacturer tells people when they haven't done something they should have with a product. With all respect, don't believe everything you read from companies because long experience tells me in many instances it is BS.I suspect the engineering/design/electronics team at Sony have some sound reasoning as to their expert decision.
Accept it for what it is - a brilliant bit of kit.
I accept the A7RIII is a great-specced camera, but implying people can't voice their opinion about something they feel is a weakness and should just "accept it for what it is" is illogical and the kind of thing simplistic argument a child would use.