[bergmann]

I agree many of the default Vim syntax highlighting files leave a lot to be desired. You can improve it though and Vim highlighting is actually very powerful. I use a C syntax highlighting improvement plugin to add (among other things) highlighting to operators and function names in calls[1].

You can also quite easily customise syntax highlighting by placing your own additional syntax file in .vim/after/syntax for a language. I use this to add some more custom keywords. You could quite easily add highlight support for ".Else" in an after/syntax file.

[1] https://github.com/justinmk/vim-syntax-extra