You're about to tell me that they still work with millimeters in construction.
I'm talking about construction, not an architect who creates the plans. In practice, millimeters don't matter on the construction site. That's common practice.
With today's nitpickers, that can of course be the case. Obviously, every millimeter is looked for to cut the invoice or to really screw the contractor over. Well, everyone can see it as they wish.
When I issue contracts, I stand right next to it and measure myself. There's no room for botch jobs.
And if you follow Mr. Se-na here, it's not the first serious and very hard-to-fix defect in his house. I would say he probably doesn't take care of it enough. He only shows up with the problems when it's too late.
Are you surprised when the Romanian botcher piecework plaster crew then ruins your facade? You have to be there on site and check.
You can't let such craftsmen work alone.