Hyros integration works on some features not all.

Auction Insights - breakdown of days / hours purchases (roas).
Ad picker - when launching an audience, only facebook metrics available
Audiences - super lookalike, top events only work with Facebook related audiences.
Automations - when using the option days/hours only facebook metrics are available instead of Hyros.

Basically, if the integration is available it should be all over Madgicx consistently and not just in some features.