If the goal is fun. And it's not fun to use it. That's a valid reason enough. I'm fine with maintenance skills. I love maintenance skills. But currently we have two of those built in our kit. Hotshot and our heat gauge. To say hotshot is outdated is an understatement. It has no special extra interactions. It's not built into a combo. It's just another maintenance ability that's not intuitive and has no special interactions. And it clashes with everything. It adding heat makes it even worse now than it was in 3.0 when juggling 80-90 range heat.
