On one hand I agree, on the other I'm presuming it's to separate people that afk with people that pay attention.
If you're already re-heating manually for max heat (not using superheat form) what's one more click? I think this would make superheat form even easier to use; just click once when it drops under 33% heat, which takes a couple mins at max smithing.
Just seems like it'd make things too easy, which is a trend we need to start pulling away from not gravitating towards imo. Only takes 2 clicks to re-heat and get back to the pounding, kinda lazy to ask one be removed. Just use superheat form if you wanna do afk/easy smithing.