See... but this is the kind of thing that leads to this kind of both-sides-ist article in the first place. In fact there are innumerable species of phytoplankton and other primary photosynthesizers, lots of which would be very happy to migrate toward the poles as the oceans warm. The planet may be warming rapidly, but it's been warmer in the geologic past and the microbial ecosystems did just fine.
Obviously bigger organisms are going to be terribly disrupted (and for bigger fauna the beginning of a mass extinction already seems to be under way). This is, y'know, outrageously bad.
But predictions of the end of life on earth are just feeding the right wing meme that liberals are irrational and opening the door for journalists to push this kind of "It's not so bad"[1] article as "balance". We need to be serious with our criticism. Urgency doesn't require sensationalism.
[1] To be fair, not having read the complete thing yet: the text of the article seems really quite good. It's not whitewashing anything I can see. But the theme and headline are still a variation on "environmentalists are idiots".