My complaint with “compact” is aimed at the whole category of “full time live view” systems, not just Sony’s.
(Though smaller sensors with smaller pixels give some more opportunities for compactness, mostly through shorter focal lengths: once upon a time, “compact” meant 36x24mm vs larger formats, not rangefinder vs SLR.)
P. S. to Scooby70: I am not disputing the opportunities for a smaller kit; just pointing out that the size advantage is not the most important virtue of ditching the OVF, and is not a universal, defining characteristic, because it vanishes when one wants significant telephoto reach.
But it can be defining characteristic if like me you mostly use lenses in the 28-50mm sort of range and if you do that the fact is that a CSC is a CSC compared to your average DSLR.
The first time I took my Panasonic G1 out instead of my 5D the weight reduction was such that I had to keep checking the bag to make sure that the camera was still in there and these days I can take an A7 and 35mm out in a very small bag and even in a winter coat pocket. So the CSC does work at times.
I see your point, mount a 400mm f2.8 and it's not really a CSC... Yes. I see that but sometimes it's still a CSC and after moving to CSC for reasons of bulk and weight and to be able to shoot more discretely I came to value the other things.
I was never happy with the bloated things that DSLR's and their lenses became and CSC mostly just get back to the sort of bulk of the 35mm SLR's I had all those years ago, although the new cameras are heavier as back then they were a mostly empty box.
I do appreciate that in general lenses need to be bigger these days to incorporate all of the electrical stuff and to give us the quality across the frame from wide open that we expect to see these days when pixel peeping and these things add to the bulk and weight so even with a humungous lens shaving a bit off the body is IMO still worthwhile especially if you have a 35mm in your bag to use on the way home from shooting the World Cup with your 400mm f2.8.
Size and weight are issues for me and if they were the only advantages they'd still be enough for me and enough to deserve the title of CSC and maybe for a lot more people too as 400mm f2.8 users are going to be a tiny minority, add in discreteness, the EVF and all it brings and the keeper rate and it's a package that no OVF DSLR can match.