As the article correctly points out, 3 C warming is still really fucking bad. Just because it can technically be worse and we won't all die does not mean it'll be nice to live through. Bringing about the extinction of 29% of all species is madness. To quote the article:
"The most comprehensive and authoritative assessment of risk across all sectors — health, food, water, conflict, poverty, and the natural ecosystem — by the IPCC in 2018 basically concluded that we don’t want to warm the planet beyond 1.5°C (2.7°F), and we really don’t want to warm it beyond 2°C (3.6°F). And if we do happen to overshoot those targets, we want to keep the duration of overshoot to a minimum."