Yes but what flagship company has marketed their phones to the root community? Almost none. It was just a few years ago they were having all the locked bootloader issues. They still may, i don't know. Phone companies just haven't been very root friendly. I'm not sure why anybody would expect utopya to give that a thought...Especially considering the shareholders were the main people watching that video.
I think if they actually release a phone, the marketing will include all the specs you want. I haven't even rooted a phone in probably three years because there isn't a whole lot of need anymore. For me anyway.