"The (very slim) majority may feel that such taxes are not the best way to deal with climate change, "
You have no way of knowing that.
It could be that they simply don't support fighting climate change, or deny that it exists, and could possibly want to claw back other related programs.
"the false choice of wealth redistribution or climate change apathy"
Actually that's a false proposition ... because Taxes are not Wealth Distribution.
If they were taxing to give to the poor, somehow in the name of 'climate change' then maybe. But taxing travel to reduce usage - or - to pay for offsets, or to use to invest in climate programs - that's not 'wealth redistribution'.
"There are other ways of looking at this, which I don't think are captured by framing it as them having rejected climate change measures. "
They voted squarely against measures which were designed to help meet the Paris Accord targets. While there is obviously more nuance to it, the editorial framing is close enough that it's fair.
It is what it is.