In looking to turn that post in a more optimistic direction I would first start by focusing on the "ambiguity" part, because I think that could be stated better. I don't admit that Epicurus is ambiguous about the things listed in the post about the nature of the universe. Epicurus very precisely says that there are no supernatural gods and there's no existence after death, no eternal ideal forms, etc.
While we do have lists here and I think it is important to see how they are derived, I very much agree that it is not a good idea to focus on things like "THE four cures" to imply strict formulas which we today package as headliners but which are not well founded in the literature in that kind of way. There are all sorts of combinations that apply in different contexts.
I would say that even if a person were only to embrace the "no supernatural gods", "no life after death," "no eternal forms/essences," "not virtue but pleasure," and "ground reasoning in the senses (and maybe one or two more I am forgetting) then even a simple set of views like that would be ample to serve as a unifying perspective for considering oneself an Epicurean fellow-traveler. Even this list could be shortened - you have to start somewhere.
At least from my own perspective, having friends with those general viewpoints would be more than sufficient reward for the effort we put into studying Epicurus.
As to the bracelets and symbolism I see that as useful but differing widely by context.