[Brightcolours]

The (de-)attachable viewfinder is a bad joke in the year 2019.

Another Klaus' Canon knee jerk reaction? ;-)

I don't see why it is a bad joke, or anything bad to do with 2019.

You have cameras with and without view finder, which has to do with size and resulting real estate. Small cameras have no space for viewfinder due to 2019 screen size and controls, cameras with view finder are bigger.

Example: Panasonic GF6 is made to be compact, no room for viewfinder. If you want a view finder, they for instance offer the bigger Panasonic GX9. Another example: Olympus Pen F is bigger. If you want smaller (Olympus Pen E-PL9, same height as EOS M6) you get no viewfinder. So in reviews, it gets a negative point for not offering a viewfinder. How 2018 of them, right? ;-) 
But then again, the Pen E-PL9 has a 16mp sensor, and you also dislike the 32.5mp of the soon to be new EOS M6 ;-)

The Canon EOS M6 is smaller than a GX9 (smaller than the E-PL9 in fact), and has no viewfinder. The EOS M6 is made to be small, the EOS M5 is bigger and has a viewfinder. Nothing anti 2019 about any of that, really.

And what if you want small, but also like the option of a viewfinder? They then offer a detachable viewfinder. What is 2019 about it? The OLED display.