This is nonsense. C has a very weak type system and very weak runtime guarantees, making it much easier to introduce problems with no indication that something's up. Other languages with strong type systems and/or stronger runtime checks eliminate large classes of bugs that are very easy to trigger in C.

So, yes, it is C's "fault" that it doesn't protect against classes of bugs that many other languages do. Sure, those languages have some of the same bugs that C does, but they're missing most of the very worst ones and that's really powerful. For example, a garbage collector protects against accessing dangling pointers: it's just not something the programmer has to worry about at all.

Rejecting cricitisms of C's safety inadequacies with "just code better"/"just learn the language better" doesn't work in practice: there have been too many high-profile vulnerabilities in C software, many of which would've been much harder to trigger in other languages.