World of Warcraft has never been harder, and more challenging than it is today. Likewise, the players that are playing WoW have never been better.
Even from the lowest levels, has never been more difficult than the LFR that was given in Legion. Compare Warlords of Draenor where you may wipe of Archimonde once or twice, to today where undergeared players absolutely can wipe to Aggramar due to how he spams Flame Rend which he does in no other difficulty except LFR, and Argus where there are innumerable ways you can wipe the raid on top of not meeting the DPS check.
In addition to this, because LFR is harder and players have been getting better, we have seen a massive uptick in players pugging Normal/Heroic raids than any expansion previously, keep in my I have been playing since Vanilla beta. I have never seen this many active pug raids in the history of World of Warcraft. More people are getting their Ahead of Curve through pugging than they ever have before (killing the last boss on the 2nd hardest difficulty for non-curve raids of the past)
Also, more players are clearing Mythic Antorus by pugging than they ever have before since that feature was enabled, and in the history of WoW never have I seen pugs as successful as they are today.
Never, ever, ever has 5man content been as hard as it is in Legion
It is a very rewarding, very entertaining, and very difficult content that is now spontaneously building Blizzard an e-sports brand out of nowhere.
What LFR needs to go away posters and MMO-C readers don't understand, is that because WoW has become more difficult over the years, actively and directly less casualized, this has caused a direct effect of pushing players into higher content, and feeding Mythic guilds with new recruits from heroic to trial, than in every expansion previously. Nighthold was a bit rocky because of the AP requirements, but as Blizzard fixed it's AP/AK & Legendary systems, it massively boosted the long-term health of the expansion.
Raiding has never been harder, LFR has never been harder.
The problem is, that people who love to quote Asmongold don't realize is that they literally do not want players to be better. They see the existence of casual content at all as 'offensive' to them, even though it exists as a gradient into harder content, and if that casual content went away, if LFR went away than there would be no normal mode puggers/raiders, no heroic mode puggers/raiders, and no mythic puggers/raiders. Mythic guilds rely on that staircase to survive. You can say Titanforging is a problem, and Blizzard has acknowledged it is a problem, but if it genuinely was this apocalyptic thing that meant no one cared about doing Mythic content, than less people would be doing mythic content. Instead we see the opposite, more people are doing mythic level content than in any expansion previously.
The evidence for this is in the premade groupfinder tool, where I can find a group forming for any dungeon, any raid during peak hours of any dungeon/raid at any difficulty at all hours of the day since Legion launched (and whenever Mythic gets xrealm enabled for that content).
Posters want to be doomsayers, they want the game to be dead, and they actively become angered when Blizzard does anything that leads to a positive result. It's time to ignore these people, and not give their ramblings the time of day. Because casual content is what feeds Mythic guilds, and without casual content there is no WoW.