Would you rather the lenses have the same diameter as the mount all along the barrel? I do think the EF-M lenses have a nice look, and one that’s consistent across all eight.
In bright light with a slow-moving or static subject, there's not much of an advantage at all. Nor does FF have an advantage over APS-C, in those circumstances. If that's all you shoot, just use your smartphone and be happy.
Why do you think I'm sarcastic? Do you not believe a person could use that idea? I assure you, it's possible and one gram of 23 karat gold would increase the value about £90. Certainly, real gold couldn't be confused for a £5 Chinese toy, could it?
“Attractive” is subjective. Canon lenses have gone through several “looks” over the years, and I’m sure the look of the RF-S lenses was chosen very deliberately to convey certain attributes. I believe designers call it “design language.”
I would bet if we could interview whoever makes these decisions at Canon, they would probably give that as the primary reason. That probably isn't something most of us care about for our own needs, but the smaller amount of materials give weight savings and cut costs are additional factors which should be important to those of us who want APS-C and are not eager to find excuses to be negative about Canon.
