I don't think any official news has been published regarding this one. Anyway did you read the article completely? The article itself gives us proof that the crypto ads have not been banned yet and neither they are thinking to do so. Just check the snapshot from the article writer and you will see the mail conversation with google says that they have not banned any ads and there is issue with platform for displaying the ads at all.
Also, crypto currency is big market for the platform like Google because Crypto currency projects invest heavily on the ads and thus google benefit a lot from that.
I strongly agree with your opinion, the person who posted this topic did not read the article in its entirety, therefore he only concluded from half the article when if he read the whole there said that google does not prohibit advertising crypto currency in their flatform