Don't worry about it yet. If Horizon had an animal mascot, it would be the Great Pacific Northwest banana slug. By the time they called me for an interview, I'd almost forgotten that I'd applied there. Figure 6-8 weeks.
Last I'd heard, Horizon had over 200 pilots in the "external" pool and around 500 in the Pilot Development Program. I expect hiring to be pretty brisk for the next few months (unless Covid shuts us down again).