I don't know how it works with synching achievements to Google Play Games / Gamecenter, but can you change how it unlocks? Maybe something as simple as "Finish a real-time game against an opponent within 10 levels of yourself." Or at least fix the "all other achievements" to not require it?
Thanks for your feedback! We've fixed the Blind Date achievement in September. It no longer requires you to use Quick Duel, and now says "Get connected to an online real-time game."