I think "spirit of SumatraPDF" means that he wouldn't npm install 800K lines of code into his project 5 minutes after creating it.

I look at the speed and efficiency of VSCode and it gives me hope that it's possible to write the high quality programs that we're used to from C/C++ using web technologies. It's just that right now we don't have enough good programmers creating good programs to incentivize the others to do better.