I mean, I don't think the term SNAP is confusing. But if you've never used it, or don't know anyone that used it, it's worth defining for those people.
In the same way that there might be people who don't know that the ACA = Obamacare, there might be people who don't know that SNAP = food stamps. More and/or complete information isn't a bad thing.
I gotchu fam. c/risa represent!