Our whole unit is in Afghanistan but we got stuck in Kuwait because of the Quarantine, are we authorized patches?

Those deciding to wear the patch in Kuwait...even though they never made it to Afghanistan....are more wrong than a hooker trying to pass a 3 dollar bill in the collection plate during Christmas Mass.

No. You have to be physically present. You never left Kuwait. Kuwait does not rate the SSI-FWTS. You don't earn patches and awards for hypothetical service.

The reg is saying a lot about the Soldier receiving CZTE, I see it as if you aren't getting Tax Free, then you don't get the SSI-FWTS
OEF Between 9 January 2002 and a date to be determined for those Soldiers deployed to the Philippines, in support of Operation Enduring Freedom, who were receiving combat zone tax exclusion and imminent danger pay (IDP), and who meet the criteria of paragraph 21–17a. Between 31 July 2002 and 31 December 2014, both dates inclusive, for Soldiers deployed to the CENTCOM area of operations in support of OEF who received combat zone tax exclusion and hostile fire/IDP as identified by CENTCOM Command Center–Joint Staff for Personnel and Administration. Soldiers who were deployed in the area of operations on training exercises or in support of operations other than OEF are not authorized the SSI–FWTS, unless those exercises or operations became combat or support missions to OEF.
OFS between 1 January 2015 and a date to be determined, for Soldiers deployed to Afghanistan, Pakistan, and Yemen in support of OFS who received combat zone tax exclusion and hostile fire/IDP as identified by CENTCOM Command Center-Joint Staff for Personnel and Administration. Soldiers who were deployed in the area of operations on training exercises or in support of operations other than OFS are not authorized the SSI-FWTS, unless those exercises or operations became combat or support missions to OFS.