Don't worry about it, it was an end of the year thing. This is a fund of funds, really you can't get much more diversified than that when it comes to CEF investing. Expect more like 8% to 9% yield on average I would say.
Here's my 2 cents regarding that screener. First off, I strongly believe it's counting December's two dividends of .28. Couple that with the lower price of 25.3X, and you get a slightly higher yield, though accidental as Cramer may say. The yield is closer to 8%.
It was just rebalanced and the index chooses CEFs that are at a discount so this may initially lower the appearance of value in this "fund of funds".
I love this fund and have been buying. I'll pay the higher expense ratio to have it somewhat actively managed quarterly. I prefer they do the hard work and I just sit back collecting 8%