Yeah, I see plenty of people complain that C++ can't be simple because devs will keep reaching into the cookie jar, but that's not the language being unable to do something C can.
The only complaint I see about C++ not being capable is the correct observation that more platforms have C compilers than C++.
Either way, C++ spans a big range that goes just as low level as C. Even if these complaints are real they don't make it a reasonable comparison point for the "C is actually high level" argument.