No, because I'm not claiming to be some hardcore all day every day Raid content player. I've attempted Garuda Extreme dozens of times after I studied up on and played the fight enough, I never finished it before 2.2 because no one else I ever came across knew what they were doing. Because those exact people already had their pre-formed groups that they set to be their statics for other content. I was with the other people who didn't have enough time to play through the content, or were unable to because of their own skill. Yet I still know how to play my role through each of the fights. I don't have actual experience with Ifrit Extreme yet, and I know what to do for Titan but I have not cleared it because of what I already said.
You are right that I don't have tons of experience with pre-end game content, but that's all it is. A lack of actual experience, but I still know what to do when I actually get to it. The difference with you is you're thinking you're credible enough to diagnose who doesn't know how to use their class because you've dabbled in one Magic and one War class, and barely anything else. Crafting doesn't qualify you to be able to say "Hey White Mage, do you know what Shroud of Saints is so you don't AoE heal right before a fight? Hey PLD, have you tried emptying your MP with Flash at the start then rotating your Rage of Halone combo between each enemy?"
Because you are literally lacking in experience with most of these classes, which means anything you say to other people about them has little to no merit. I don't claim to tell people what they should be doing on a class unless I've had enough firsthand experience with it myself. Then here you are preaching to someone about Summoner when you have a drop in the bucket of time actually using Arcanist and not having even gotten the Job yet.
When was I lecturing anyone on end-game content? Do you have a quote that shows me telling someone how to play in T6 and beyond? Because all I've told you because you're too ignorant to actually recognize it is that you don't have any classes leveled worth a ****, don't preach to me to start off on how to play something if you've only used BLM and BRD. My god the irony that you're going to turn around and tell me what you've been doing for months is absurd in of itself. Don't tell me how to play SMN if you haven't used the class, and I won't tell you how to use BLM when it's only at level 32 for me right now. Capiche?