Over the years we’ve gone from always showing all plugins in searches to devaluing plugins that aren’t updated in a time span to devaluing them if they’re not compatible with the latest few releases of core. All of this is done to improve the user experience and to ensure they only find plugins that are actively maintained and compatible with the versions of WordPress they use.
As part of this, when a plugin is closed we currently require the ‘tested up to’ value to be, at least, the latest stable version of WordPress core. We have updated our emails for