I think it has to do with cost. Most websites are not geo-blocked. It's primarily video that gets blocked. In the future I imagine geo-blocking will be less

I think it has to do with cost. Most websites are not geo-blocked. It's primarily video that gets blocked. In the future I imagine geo-blocking will be less common as (1) the cost of video-capable CDNs goes down, and (2) the use of geo-targeted ads go up. Ultimately it's up to the content provider to decide how to share their content. Those who want their messages to be seen will allow them to be viewed by everyone for whom the provider can do so in a cost-efficient manner.