I find this ironic too. I get NYT via my institution, and on the actual app there are ads, but when I browse on the website, logged in with uBO, there is nothing.
Funnily enough, the only way to not get ads on those news apps is by using moded apks (unless you use root or dns adblock, but that usually messes with the layout) . There's no amount of money you could pay to remove them even if you wanted to, so the only way is to download apks that not only remove ads but also make all the articles free without paying anything.
It's crazy because Bloomberg already charges quite a lot (40$/month?) if you don't get a discounted price, how much are they getting with those very generic banner ads? It can't possibly be more than a few cents, maybe a dollar or two per month for casual readers. It's so counterproductive if it makes them lose even just a few % of their subscribers.