Are they? It could be a tax to offset the externalities that are currently being socialized by keeping other coal plants running to sustain existing homes, farms, factories, etc.
If you abitrarily decice a metal processing factory is "worth it" while an AI datacenter isn't, then yes, it's planned economy.
And yeah, I know the governments already tax different industries differently. I think these policies are hardly justified and mostly "redistribution by lobbying".
What you’re implicitly suggesting is government allowing/banning certain uses of technology because they are deemed not worthy. That is an autocratic style of thinking.