Freezers have been known to suffer power hiccups or worse. I would be concerned if suddenly someone were selling multiple batches of half-price straws.
The provenance of the buyer and the repro vet facilities & employees are all weak points in any sale.
I wouldn’t buy squat from Kasheare - no matter how reputable and reliable the repro facility. I wouldn’t trust her not to sell a bad straw.
Which may be me being a bit too picky & paranoid. But I vaguely recall a different semen broker/handler whose operation was a total feces show. The records were a nightmare, the conditions were too, etc.