A lot of companies are cutting back big time on advertising spend and that’s Google’s sacred cow of revenue so this isn’t a surprise.
I work in digital advertising. Spend* is up. Companies are diverting their traditional advertising budgets into digital. I'd be surprised if Google is unable to capitalize on this. edit: I want to clarify it's strictly ad spend/booking. It's companies committing budgets. They know they will want to run ads and will run more ads. The ads haven't actually run yet, so ad payouts will tank.
Don’t doubt there are companies going against the tide but seems clear as spend has declined. Clearly an opportunity to get good rates for those looking to spend.