Impulse is dead because of limitations imposed by how the JS code is bundled together and you can just open the console and execute things directly that way.
Yes I am aware that phone-players would still be boned in this instance, but impulse was never really intended to be a cheat-cheat. It was something I cooked up primarily to help test things we were developing - the fact some people ended up using it as a cheat is ancillary to why it existed, and what it achieved for us on the team is replicated by being able to hit F12 and type in the console perfectly.