I am an advocate of pectin enzyme with fruit laden melomels. I have used in secondary after fermentation with good results. Also, cold crashing sediment out of solution works well in conjunction. My 2 cents worth...
2nd on the honey after flameout. In fact, I wait until my mash has cooled considerably prior to adding. With meads, I use ZERO heat and simply stir. As stated above, that is with raw honey, not pasteurized.
In a short answer, no. D47 has a tolerance of 14%. If you have already churned through .123 I would say that's about it from that strain. I do not believe you have a stuck fermentation issue.
As a general rule, honey does not spoil and is one of the best "naturally preserved" foods on the planet. Of course, there is always a caveat. There ARE small amounts on natural yeasts in honey. If the honey had to much of a moisture content, it could ferment. This could be aggravated by...