They got like 10 new sponsors, you can see it on their page. They are one of the top OSS projects in terms of revenue.
I can't recall any other OSS project that makes so much money and has nothing to do with infra/cloud.
They were making around $1M a year back when they complained about the revenue. A lot of Linux distros can only dream about such an amount of money.
$1M a year isn't a lot of money if you are paying for full-time employees.