If the community scriptwriters used 5C or 5E in ALL there tags there would be no issues.
A lot of my most used stuff (like the Mystic and Artificer didn't include my ID unfortunately - SoE). I used cMystic, cHelpMys, cArtificer, and cHelpArt when I created them. It was a mistake on my part at the time. To change everything would have required my players to re-created or modify literally dozens of characters (like happened with the Mystic).
In my opinion, all the Community materials should have the 5C in all tags; including those for class ID and helpers. <sigh>
I have started including my ID in all my tags. But Id rather do without community material than go through the headaches I experienced with my Mystic version when the Community version came out.
I've had to do this with the Communities' version of the UA Artificer and have not missed it. I have been workign on creating my own version of the UA Artificer, but I have so much on my plate and so little free time to implement it all . . .