Does a tour of duty to Egypt’s Sinai peninsula qualify a soldier for wear of a CSIB/SSI-FWTS?

I’m going to start with “no”. The Sinai Peninsula was authorized the combat zone tax exemption in the tax cuts at the end of 2018. Effective in 2019, the exemption was made retroactive to 2015, when an insurgency in the area started some wild Tom foolery between the government and locals. At some point before then, Hostile Fire and Imminent Danger pay was also authorized.

Now my understanding is that since this mission was not in support of OIH/OEF/OSS or any other CENTCOM mission, that it was not a combat deployment. AR 670-1 does not reflect Sinai as a qualifying AO. The problem I have with this is that there is one soldier tooling around (different battalion currently,but was in the same company as me in Egypt) wearing a combat patch for this deployment. He has no other deployments. On numerous occasions myself and other NCOs have approached this SM and had him remove it, but recently he’s been resistant to that, saying there is documentation saying it’s an authorized combat zone now.

That being said, the authorization for Saudi Arabia does, due to a territorial dispute, somewhat authorize a patch for those on the same mission as us, but only those who rotated through one small outpost.

I’ve scoured the internet, ARs, DA memos, and DAPMS, and haven’t got anything more recent than 2017. Nobody else wears a patch for that deployment, but before I make an ass of myself confronting this soldier again, is there something I missed? Does anyone know anything about an authorization to wear a patch for the Sinai? Big explanation for a simple question, thanks in advance.