Sort of an important mention, yes, but also sort of skewed.
As the article points out 50%-70% of their emissions are due to their investments, meaning those 125 billionaires still have more direct emissions of the size of up to half the country of france.
And I don’t think its fair to equate having some little money in the bank, with employing brokers to ensure the exploitation of human labour and planetary resources enables you and your children to live in luxury without ever having to work
The difference is living off of what you work for and needing a bank account vs living off of your capital (meaning other peoples labour)