If you read all the changes made, it's basically very vague rules. They are not distinguishing which one is actually allowed which any bitcoin-related ad could be subjected to not being allowed.
Beginning August 3, advertisers offering Cryptocurrency Exchanges and Wallets targeting the United States may advertise those products and services when they meet the following requirements and are certified by Google.
From the quote above, maybe we can understand that allowed ads must meet the requirement and get Google certification. Advertisers still have to comply with the regulation of the country which is the region or country the advertisement is targeted for and so far the United States is one of those mentioned in the article. Trading platform and wallet are two ads that may get permission from google and get certified, but nevertheless they can increase people's exposure to bitcoin and crypto. I believe this will be positive information for crypto.