You make a good point and we seem to agree that sharing content on the internet seems to be better discovered via tubes or toks than google.
I think there are plenty of great reasons to blog, and there will be more in the future.
Google really kneecapped the written word with a few sites as exceptions. Wordpress has struggled to make blogging better, along with the other publishing options..
However the written words are often a better way to communication certain things as you can have easy to follow links and more formatting that makes things sink in well.
Although 2023 is a perfect time to sing the 'video killed the radio (and written word) star' ... some things are aligning where that could shift.
Now that mobile theme styling is getting better, all it's going to take is a few changes like 'nofollow' links by default, easy to moderate web ring additions, animated talking heads and AI pics to include and we will see a re-emergence of great story sharing again, and google won't be needed for them to have impact far and wide.
I see activity pub helping with this in the future, and a few other things that are starting to get traction.