It's mainly for hilarity's sake, but it's still a fun weapon to see a T pull out a launcher and shoot a soda machine at someone. https://steamcommunity.com/sharedfiles/filedetails/?id=491910658
I've used it on other servers before. It's a pretty simple weapon and tool, you can download it and try it for yourself. It wouldn't be anymore laggy or buggy than say a newton launcher or any of the other T weapons that are in circulation now.
Something very similar was already in the first PTS batch (KA-S TA-3000). Only time will tell what happened to it.