Simply put, if you did that and found something in Retail to enjoy, good for you.
I tried Retail during early Legion when there was no WOW Classic to compare it to or look forward to (yet), and it was not the game for me. I’ve kept up on changes to it, and it sounds less and less like the game for me, to the point I’m not willing to even install it to try.
I don’t spend much time trying to farm mats like that. I like leveling alts and farming mats along the way for their professions, and for end-game mats and crafting I am very blase. If my miner sees a Rich Thorium Vein and scores an Arcane Crystal, I’m happy, but I don’t dedicate time to riding in circles looking for one, gnashing my teeth when someone else gets there just before me.
I’ve never done that. I’ve kept an eye on LFG and Local when I’m in a zone and have all the quests. I keep an eye on LFG when I’m on another character, but I can swap if a group is in need of what my alt can do. I have a couple tanks and a healer in my friend list who have been great in groups, and we call on each other.
Compare that to what my Legion experience was - queue up while sitting in town staring at the Auctioneer, accept queue, poof into dungeon and feel like it’s a mad scramble to get it all done as fast as possible, back to town and repeat. Horrible. I stopped doing dungeons after the first time or two in regular ones while leveling.
Other people may love that and do Mythic+, but to me it is the epitome of what’s wrong in Retail dungeons. I’ve had much more fun in a 2+ hour slow crawl of WC with someone DCing, a wipe that involved killing respawns, a long AFK that was unavoidable, and a great sense of accomplishment when we finished.
Compared to the fun of the next tier requiring me to repeatedly do the same thing again to get the newest iLvl version of the same thing I already have?
Personally, I don’t play for loot. If something isn’t guaranteed - crafting or quest reward - it would be nice to have, but my enjoyment of the game is not hinged on getting it. That’s a lesson I learned in TBC and it served me well in the first half of Wrath.
For you, and I’m sorry you feel that way. For me, there is a lot of fun. I originally planned a single character. Instead, I’ve got around 16 across five realms, the highest three being 55, 49, and 45. I’m having a blast leveling across a variety of ranges, doing whatever comes up that I want.