That page on silencer shop is based on recent approvals. Forms that are currently pending that have taken longer aren't factored in yet.
OP fails to understand this, yet talks of people being Baltimore public school educated. Okay look man we know you actually just mean the n word.
Anyway, yeah, it's likely that their current data, the way they maintain the figures, probably has their longest approval since the beginning of the time window they are currently looking at, is about 9 months. Interestingly, since I ordered a can six months ago, basically every approval on the tracker page had been between 260 and 280 days, with a couple of exceptions that were shorter, usually after a resubmitted form.