The XX on Saturday 8/8?

Their tour page lists them on 8/8. I know that oftentimes artists will list the first day of the festival as a placeholder ahead of the daily lineups, but it seems weird to do so for the second day of the festival? Has this incorrectly happened before with other artists on other years?

https://preview.redd.it/pjtcmhkka9ng1.png?width=1238&format=png&auto=webp&s=4126e256ef39d9fc35dd06ea2ea87ce929519d10