Blackhorn 209 was developed to be a premium powder that would fill a hole in the existing subs. Because it is progressive burning and develops 15 % less pressure and handles heavy sabot loads without much velocity loss and can be shot with out swabbing and not lose accuracy it fills that hole quite well, it also leaves those people that can check the pressure as they go have some of the advantages that hand-loading gives a cartridge reloader. It was not meant to be use in open breach guns because the pressure while lower is maintained several milliseconds longer causing what could be a dangerous blow-back, people that have puller pieces of primer out of their skin can verify this.
Now I have an Omega ,a Triumph and an Encore Endeavor I use it year round in all three and have never had a misfire and I have been using it since it came out.
I don't attempt to use it in my other guns I use pyrodex in them [mostly traditional].
I don't really see much of a problem here, the better CVA have a breach plug with a design that was held over from black powder but modifying it to work is common practice and has been discuss on this forum and several others many times I even modify my TC plugs; careful custom design is what drives this sport to higher levels. There are always a few people who do not keep hand tools or prefer to have some one who has gained knowledge by trial and error to do it for the and there are people here who enjoy helping those people.
Partly it comes down to the fact that you never get more than you pay for and sometimes you are lucky to get that much.