I think GP meant that there's a big difference between Mozilla flagging the less-powerful uBlock as a mistake and Google intentionally deprecating the entire mechanism that the more-powerful uBlock depends on, and that you can continue to use the original and more powerful version of uBlock on Firefox for the foreseeable future. Thus, Firefox should be the clear choice for people who want to block ads.

That view is entirely consistent with reading the article, as in-fact the article points this out.