I haven’t seen anyone even attempt to answer why we needed to remove keys 2 - 11 (and shift 10 to untimed) in order to provide a single non-faceroll untimed difficulty at a previous +10 scaling.
Ok, I will try to answer this as someone who is a super casual, who is the target audience you are advocating for, and who benefited from those 2 -10s S3 Keys.
Short Answer: It stops wasting everyone’s time getting to their personal Point-Of-Failure.
Long Answer:
I joined S3 M+ very late into the season. We’re talking like a month until S4 kicked in. I didn’t bother signing up to M+ since I kept getting nervous every time I tried to do it… thanks to the unrelenting fear-mongering on these forums about nightmare healing on M+.
I started on M+2, ran my first dungeon, 0 deaths, ranked the key up three levels. That M+2 was less stressful than any leveling dungeon or heroic. No chaos from bad tanks over pulling, DPS standing in too much bad, interrupts happening, CC. Good stuff.
I got up to +5. Almost every run had 0 deaths and it wasn’t bad nor stressful.
I started to think, “Where was my personal skill ceiling? I should have hit a wall at some point. This is the fabled M+ that causes such a divide on these forums. The absolute horror stories from low keys. Had to be soon. At this +5, surely I will hit that wall!” Never came. That +5 was just as relaxing as a +2.
After that, I stopped due to personal matters. I didn’t get to play much.
If you look at my Raider Io, you should see a pattern of me keeping the key levels close for a good number of dungeons then me trying a higher key. If I played and didn’t stop, I would have grouped a bunch of +5s then moved up to a +6 higher. Rinse and repeat until S4 kicked in.
The question is: how long would it take for me to hit my Point-of-Failure? Every player has a Point-of Failure, or a limit on their current skill and gear. Based on my play-style: would it be weeks, a month? How much time would I be OK with spending finding the Point? I know I could have just tried rushed up the ladder, though I don’t play that way.
The shift in difficulties for S4 streamlines the process. As of right now, Heroics are as hard as S3 M0. Which I find funny since these heroics I am using to gear up with are more stressful than S3 +2. Then again, that is DF content and RNG is RNG when it comes to party makeup.
If I choose to do M0, I will get a chance to see if I experience what could have been a Point-of-Failure for me back in S3. I say “choose to do M0” since I am going utilize my healer privileges and go into M+2 first before doing a M0.
If I hit that wall in S4 M+2 or whatever, then I will save what could have been weeks of time if S4 kept the way S3 did keys.
That’s why for the shift. It is to save time finding one’s Point-of-Failure. I honestly like the shift and appreciate they made it this way.
Yes, you and those players who enjoyed being below 10s, which included me at the time, lost that generous scaling. It is all now clumped into M0. That is a tradeoff to ensure the spirit of the Mythic Dungeon system is kept.
The spirit of the Mythic Dungeon system was not to hang out in those key ranges: it was to improve yourself and move up until you hit your personal Point-of-Failure. Blizzard streamlined that process. It was needed. I should have not had a less stressful experience in a +2 than in a heroic dungeon. Mechanics should have mattered. My skills and knowledge should have been tested at a +2. They were not in S3.
I look forward to seeing what my Point-of-Failure is. I am sure others feel the same way as well. Now it won’t take weeks to get to that point.