Right now it's all about that mythic + score if you have a good score 1200+ it doesn't take long to get into a group if your under that, well..... you'll probably get turned down from anything 12 and above no matter your gear.
My main is also a 930 sub rogue but my mythic + score is shit since I usually only do one +15 a week for the cache and there is a ton of dungeons I haven't done, so my score is only like 800-900ish range. I usually get turned down about a dozen times trying to pug before giving up and just running something with some guldies.