(I'm no Node expert, so this might be flawed, but) presumably, because they hope that you'll use the app more than a few times, and so the one-time overhead of

(I'm no Node expert, so this might be flawed, but) presumably, because they hope that you'll use the app more than a few times, and so the one-time overhead of typing `sudo npm install -g` once will outweigh the repeated requirement to use `npx` every time you invoke it. Or, taking a less mechanistic and more usability-focused approach - because the intention is for it to be seen as a fundamental tool, just as accessible as grep or cat or less, rather than "hidden" behind npx.