Another situation where a DSLR is vastly superior over an EVF camera: Astrophotograhy. Have you ever tried to shoot the milky way with an EVF?...
Yes...last weekend!
Would an OVF have been easier? Sure, in several ways. But it wasn't a deal breaker. With either my mirrorless or DSLR, I still have to estimate the composition and adjust it after a test exposure or two. Maybe it's because I don't have an ideal SLR for astrophotography either (an older APS-C), but I can't easily see the Milky Way through an EVF or OVF.
I intentionally used the mirrorless camera that night to see how well it would do, not to claim that it's just as good as a DSLR. Obviously, for serious astrophotography you do want a full frame low noise sensor, not what I brought. Everybody around me that night had Canons and Nikons, of course...but I'm happy with what I got, and I'd do it again.
The need to power a mirrorless camera's EVF combined with the lower battery life of the smaller batteries is a disadvantage, especially in cold temperatures. For a Milky Way time lapse, even with the EVF off, I replaced the camera battery with a power coupler connected to a large USB battery pack to ensure that there was power for the full duration of the time lapse. The attached frame is one of the raw files from the time lapse.
In general, I'm sticking with mirrorless since it's better for most of what I shoot, which is not astrophotography. The small mirrorless system is so much easier to manage when traveling, and now I know I can get basic astrophotography out of it. But I haven't let go of my DSLR yet.