I think it's not affecting the price of bitcoin bit its another steps and good news to everyone that Google now is alright to make ads to their platform. Maybe they realise that there will be a good to allow crypto in their platform to advertise.
This might be a good incentive for more crypto sites to appear.
More sites = more buzz, more people joining the crypto movement.
Also shows that Google isn't against cryptos in principle, which is a strong signal IMO.