Good catch. And yea, at a local level this Wilhelm not exacerbate things.

The crisis begins with the emanation of farm fires in Punjab, Haryana, and Uttar Pradesh, where farmers set fire to hundreds of square kilometres of paddy fields after harvesting them to clear them of residue, causing a smog jacket to form over northern India, particularly Delhi.

Banning firecrackers to not make the problem worse makes sense, given how absolutely bad it will be due to the slash and burn farming practices. But the firecrackers alone (while not good for the atmosphere) aren’t like a global warming factor. But for your on-the-ground air quality doesn’t help at all.