Qualifying for the playoffs is a different issue from going for a bronze licence. By not submitting their application by March 31st, a crystal clear rule that they'd been warned out about multiple times by the SPFL, SFA and the Highland League, they forfeited the right to take part in the play offs. Why it's only just come out is the mystery, sounds like the various officials they talked to in the SFA and SPFL didn't talk to each other.