Graham seems like he'd be much more authoritative on this topic than Musk.
I mean, one can (and I will argue "should", though I appreciate many people will be angry about this) used macros to change the names to whatever they want... but this makes a lot more sense if libraries stick with full names and the contractions are house style.
I think a lot of this has to do with what people develop with. If they are a vim person then typing long names is annoying, but if they use any type of IDE, the autocomplete removes that hassle and the benefits of having a clearer naming convention can shine.
In case anyone reading doesn't realize, Vim can do keyword completions. It isn't automatic, but out of the box, you can press ctrl+n to move through a list of possible completions.
Not as elegant as some IDEs I'm sure, but if typing is stopping you from using longer names, this could help.
Also, for IDE style completion:
Vim has autocomplete too. This is not an argument about vim since I have seen vim users employing both conventions.
I'm not sure which way is more popular. Paul Graham has mentioned in several essays how programmers are lazy and want to type the minimum number of characters possible. On the other hand Elon Musk has loudly complained about acronyms and contractions.
In the end you can't please everyone, so the developer just has to pick a style and go with it. If you dislike the short names, it's easy enough to put a comment above the template instantiation explaining what's going on.