You're missing the point. I'm not using a custom logging format. I'm using binary log storage, with emphasis on the storage. There is a database and a search engine behind it.

Logging format and log storage format are two very different things.

Also, I'm not shocked people prefer text files. I'm shocked why they're so much against binary log storage. There's an important distinction between the two: you can prefer text, if that fits your case better, without hating on binary storage.