Firstly, the F1 part number for the IAP-325 *DOES* indeed support FIPS, the FIPS software is just not approved yet (we/Aruba do not control the FIPS process). Because of this, we don't restrict the sale of the APs until the FIPS software is aproved. Additionally, the F1 part number includes both FIPS support *AND* TAA, and many customers may just need TAA compliance and don't need FIPS.
We expect to have FIPS validated software released at the end of this CY for the 300 series APs.