That makes it an odd choice, considering gcc and clang are free and cross-platform.
Hell, they even have a C89 mode if you'll be deep in the cold, cold ground before you recognise // style single-line comments.
It's not C that's obsolete, it's MS-DOS and the 16-bit segmented memory model it uses.
"Fond memories" is easy to explain if that's what you grew up with. As for simpler, let me play devil's advocate for a bit: our "modern flat model" looks simple until you find out it's not really "flat". The 8086 model is basically "(segment << 4) + offset", while the "modern flat model" is actually a multi-level table lookup.
Some 32-bit parts are totally flat. Like low-end ARM parts with SRAM and no MMU. Compare that to a 8-bit or 16-bit PIC microcontroller where you need to bank switch to have a usable amount of memory for your application and its heaven.
But yeah, I see what you are saying. Still, pulling the wool over someone's eyes doesn't seem so bad to me about virtual->physical memory and TLBs as it does making them jump through a distinction between pointer types, but maybe I am in the minority on that.