I was thinking the same thing, it feels neutral at best, but anything potentially bad about it is probably for non-program members.
If you give SNAP beneficiaries a discount that isn't gov subsidised, all things same everyone not in SNAP might theoretically pay more.
It sounds reasonable, but tinfoil time, unless they normally have people watching this, it feels like the USDA was told or anticipated this.
So much of this gives "Look what you made me do" vibes.