PhantomJS is only necessary to install if the test suites for App Inventor are going to be ran, which is unlikely to be ran by most people running this installer, and shouldn't be a default option as such
However, a quick way to run the test suites and fetch the logs on the system for this setup for diagnostic information and/or troubleshooting may also be useful, but the tool could be bundled with PhantomJS and setup the necessary variables prior to launching the test suite
PhantomJS is only necessary to install if the test suites for App Inventor are going to be ran, which is unlikely to be ran by most people running this installer, and shouldn't be a default option as such
However, a quick way to run the test suites and fetch the logs on the system for this setup for diagnostic information and/or troubleshooting may also be useful, but the tool could be bundled with PhantomJS and setup the necessary variables prior to launching the test suite