The trouble is that the smartphone market doesn't provide choice, they tend to all follow the same trends. Ask the people who like physical keyboards, or user-replaceable batteries. Ask people who prefer phones you don't need 2 hands to operate (there are still some options, but very few). I've not watched the video, because I don't bother with any of these things, but the context of the complaint is another manufacturer jumping on this bandwagon. You don't have to call for an end to flat displays: all that's needed is for the choices available without these vulnerable edges to steadily shrink as all of the manufacturers follow a trend. I don't think it's that bad yet, but the number of options without these things is shrinking.