Nope, that's not the case. This blocks lifecycle scripts, but it doesn't block scripts that are explicitly invoked by `npm run`. From the documentation[0]:

  Note that commands explicitly intended to run a particular script, such as 
  npm start, npm stop, npm restart, npm test, and npm run-script will still
  run their intended script if ignore-scripts is set, but they will not 
  run any pre- or post-scripts.

0: https://docs.npmjs.com/cli/v8/commands/npm-run-script#ignore...