Actually, nonsense interview is another red flag to watch out for when applying a job.

Some companies uses long and pointless interviews to discover and collect legally sound reasons to reject candidates without revealing the true reason of rejections (could be based on race, gender, age, disability, religion etc).

But, you probably don't want to work for a bad company anyway, so I guess just be happy for the fact that now you don't have to.

I'd argue this is essentially evidence that their hiring process worked in this case. I mean, a company that so vehemently believes that your HS story is so fundamental to how you'll perform as an employee manage to successfully put in enough of that in the hiring pipeline to prevent you (sane person) from going through with it and therefore not wasting either of your times!