I don't think the UAE is affected by this lockout, but I'm not sure which regions Valve is referring to with "SE Asia."
Eastern Europe: Armenia, Azerbaijan, Belarus, Georgia, Kyrgyzstan, Kazakhstan, Republic of Moldova, Russian Federation, Tajikistan, Turkmenistan, Ukraine and Uzbekistan
South America: Argentina, Bolivia, Brazil, Bahamas, Belize, Chile, Colombia, Costa Rica, Ecuador, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Peru, Paraguay, Suriname, El Salvador, Uruguay and Venezuela
South-east Asia: Indonesia, Malaysia, Philippines, Singapore and Thailand
and
Turkey.
So does this affect gifting a game(Like the new CoD) that's regular us price to Australia where's it's higher priced in USD? Sure sounds possible from that not very detailed announcement
It affects every new gift purchased in the territories listed above. Gifts bought elsewhere are unrestricted.