The accessibility is the main reason why the content is hard, and it has less to do with skill itself as it is combination of gear, skill and time.

If you have enough time to practice after certain amount of wipes you can clear it. Of course the content is tuned so it is exploiting item levels of gated gear so that even the best of players have hard time clearing it at first and have to wait for the upgrades. Why? To create an illusion there is more content than there is. I would argue that if the difficulty itself is the gate there is no need to introduce additional weekly gates with which comes another problem - the gates are either there or they are not. This current system lacks flexibility to adjust while the content is getting older but isn't outdated yet. If you want to get into raiding mid season etc. you are gonna have "fun time" trying to even find static to play with due to lack of both gear and experience.

Getting enough time to practice takes another hit - you need 8 players who have time at the same time and people have lives! So while you yourself could practice 5 hours a day, speeding up your progression by huge amount, most of the statics raid for something like 5 hours a week. That is 5 hours vs 35 of experience and from here comes the danger for the raiding community.

If you could Q for savage quickly (30 minutes Q etc) in DF you would be able to practice there with pugs without the difficulty of personal management which comes with static and people's schedules. Now, getting a clear in pug is much more difficult but there is a certain huge advantage - the player pool is bigger. In static you might clear a floor in 10 hours etc. - two weeks of raiding. PuGs might take 100 hours for the same thing and with certain amount of luck till you find honest players, but 1 hour of individual time is easier to come by than 1 hour of 8 players' time at the same time.

This would devaluate the special snowflake status the raiders get, because suddenly pugs could progress through raids at faster rate than them. It might not be probable, unless the community would be honest about their progression, but the possibility would be there.

There is the argument "but the content would get nerfed!" well that has the same value as saying "but the parsers cause harassment!". Same thing.