These are companies with huge amounts of money invested in them. Their main responsibility is to their investors. If building better models (or making more money from the models they already have) would increase returns, they would do it. So they clearly can’t do it right now.
Climate change hasn’t stopped the oil industry, and concerns about forever chemicals haven’t stopped the chemical industry. Companies don’t usually give up profitable opportunities just because they might be harmful or kill us all in the long term..