Machinist needs help.

[Seraphor]

Wildfire is not a crazy burst ability. It's 1200 potency fixed, it cannot crit or direct hit.
Drill, however, is 700 potency every 20 seconds and can crit direct hit. Then you have a cooldown named "Reassemble" that garantee a crit/dh.

A 700 potency attack on crit/dh can be evaluated around 1400 potency.

The point is Wildfire is 1200 fixed potency every 120 seconds.
Drill is a 700 potency GCD every 20 seconds that evolves into a 1400 fixed every 60 seconds.
On top of that, if you remove Wildfire entirely, it should fix MCH heat generation problems.

I'm not sure how that last line works out. But sure they could allow Wildfire to crit, or increase it's potency or something, but that would most likely come at the cost of reducing the potency of Drill/Anchor.