I'm honestly fine with either functioning or non-functioning sleeve buttons. I just don't like it when they try to look like functioning sleeve buttons.
And are you saying that non-functioning sleeve buttons with fake buttonholes is a lovely thing? This makes no sense to me.
I echo mimo's point about not removing the buttonholes - depending on the fabric, most buttonholes will display indentations if the buttonholes are removed.
Depending on the quality of your Canali jacket, you can ask your tailor to open the buttonholes.