They nerfed the wrong aspect of Billy
When I heard that Billy was receiving an overheat mechanic, I thought "Oh, so he won't be able to charge back to every unhook all the time? Good, less toxicity and proxy camping". What we got instead were nerfs to skillbilly (feathering, twitching etc) while his ability to charge back to the hook in 2 seconds and tunnel the victim down was unchanged. They left in the mechanics that enabled toxic de-pipper Hillbilly and took away the snowball potential of a good Hillbilly.
The overheat mechanic needs to be reworked so that Billy barely, if at all, gathers overheat while feathering, and instead builds up heat with distance.