This tank is irrelevant to our current conversation. That said, you can still tell them they need better gear without being a jerk about it. Just like you could have done with this healer. You were not nice when it came to discussing their gear. You were not constructive. You were honestly kind of like the mentors people on here make fun of, if I’m being honest.
“A dose of reality”? What you did wasn’t a dose a reality—you were just being rude. Sorry, not sorry, but there is no talking around the way you acted. As I said, that chat log does not depict you in a good light. Telling a healer “It’s okay, let’s try again if you would like” would be far better than “that was your fault because your gear sucks”. Even saying “If your gear was slightly better, that pull probably would have gone a little smoother” would have been better than “LOL that was your fault”. If you disagree, I really don’t know what to tell you.
Most CDs are used during trash pulls in dungeons. If you were being overly conservative with them—which you said in another post that you could have not been as conservative, if I recall—how is that the healer’s fault? Later you even said the healer was doing fine—so, which was it? Did they suck or were they fine? And, if they were doing fine, why act the way you did towards them over the wipe and their gear? Anyways, sometimes you have to overlap CDs or double stack if your healer can’t keep up. This is called “adjusting”. Not every healer is god-tier, so you need to learn to adjust to the ones that are not. You’re more likely to run into them than the god-tier ones.