Yes, they could have don't it by increasing the size of the MBP. Without using a dark wallpaper or making a custom wallpaper I can dynamically hide the notch two ways, one is with Top Notch which simply makes the menubar black, the other is with Lunar Pro which matches the pre-notch MacBooks by moving the entire Menubar down. After a year of my MBP's thin bezels, a thick black top bezel looks weird to me.That's not a benefit of the notch but of the extra screen real estate added above the 16:10 portion of the screen, which they could still do without the notch.
Your 2015 MBP's camera is always looking at you, but like a creepy stalker it's hiding behind the bushes.Plus, it's really creepy to have that large notch with a large camera always looking at you while you're on your laptop, as if you're always being watched.