Haha, not sure if sarcastic or not, but we recently had our first app with someone posting a fraps of him killing some boss. it never happened before, so I was kinda surprised. It's the worst idea ever, because watching someone play from thirdperson will only highlight the things you do wrong, and not the things you did right, unless they're really wtf amazing. Even when watching top guild vids, I often find myself frowning at said player's performance. Sure it's great performance, but all you notice is the mistakes, no matter how little. It's also why watching vids back that you made of yourself playing is a great way to spot your weaknesses, but it rarely should be used to show off your skill.
As someone said, progression guilds won't want to risk their progress with you, no matter how harsh that sounds. Guilds like that usually get a lot of applications and 9 out of 10 are crap. You don't have much to make you stand out of those. You bring no guarantee that you're not a waste of time and effort. You bring, effectively, nothing to a guild right now. I think you said you wanted to start in May, a better time than right now in the middle of fresh progress, but still an awful time. The best time to apply is when progress is done: new recruits are zero risk then.
That's a harsh truth, but armed with that, you can work to resolve that. As some suggested, get into less ranked guilds. Guilds that are 1 heroic down, or just killed lei shen normal. Or even less than that. Grab some gear. Do your best, save your best logs (not just logs of an entire evening, show yourself on your best side, not on your "average" side). Slowly work your way up like that.