Dude. The alternative is that the author would not have written the project. Not everyone has hundreds of hours of free time to throw away at learning the next hot programming language.
There's definitely an argument to be made for sticking with stuff you know and love rather than investing in the latest fad. There also comes a point, though, where the solution you know of has clear disadvantages and there are various alternatives with good support and third party libraries available to use.
Also consider that it also impacts other people if you put unsafe code out there or if others want to contribute or build upon it (even if your C is better than even the chromium team, that doesn't mean your contributors' or developer-users are).
In my opinion C has reached a point where using a project like this as a learning opportunity to try out another language, if you don't know one already, would be worth considering.
Or do what you want. However I think c++ with just RAII and smart pointers brings so much more safety than C I don't know why it doesn't get more attention. You don't have to use all the rest, just those couple of things can bring a lot of safety to a project
