This old article
https://petapixel.com/2016/04/04/sonys-full-frame-pro-mirrorless-fatal-mistake/
What a stupid article! To dig that out, interestingly shows how much Sony is still alive - and the shown model was not even their professional mirrorless which is the α9 :p The article is the big failure, not the mirrorless concept. It just doesn't show what you think about it but given the usual laziness in writing an own opinion by the posters who just throw in one link and waste others people time, while already searching for the next link.
Would you care to finish the sentence you started with "this old article... link..." and nothing more. Care to make an own statement or let others talk in your place? Are your trying to motivate someone to stop all this mirrorless errors, big failures and "will probably kill the brand" introductions of new cameras?
It never ever was a valid argument that mirrorless will automatically lead to smaller cameras, as hands will not get smaller - and if one wants to go small, use the smartphone, it will make sufficient pictures in 90% of everyday photos.
Miro just wants the world to use the EOS 400D, because it is all that is ever needed and the last model before this "live view craze" (yeah, it really is that ancient).