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C makes it obvious were you use that dynamism and where you don't. Syntactic sugar doesn't really make that much of a difference and also restricts more creative uses.

The C syntax is not really that complicated. Dynamic dispatch and virtual methods was already in the article. Here is inheritance:

    struct Subclass {
        struct Baseclass base;
    };

That's not really that complicated. Sure, you need to encapsulate every method of the parent class, if you want to expose it. But you are also recommended to do that in other languages, and if you subclass you probably want to slightly modify behaviour anyway.

As for stuff like templates: C doesn't thinks everything needs to be in the compiler. For example shadowing and hiding symbols can be done by the linker, since this is the component that handles symbol resolution across different units anyway. When you want templates, either you actually want a cheap way of runtime dynamism, then do that, or you want source code generation. Why does the compiler need to do that? For the basics there is a separate tool in the language: the Preprocessor, if you want more, you are free to choose your tool. If you want a macro language, there is e.g. M4. If you want another generator just use it. If you feel no tool really cuts it, why don't you write your code generator in C?