That being said, the park has attendance problems as well as "keeping people in the park problems" once they are actually there. It needs another E ticket to help solve the problem of getting people into the park period. I can't tell you how many people I know who skip AK.
DAK doesn't have a "getting people into the park" issue as much as a "keeping them in the park for more than 3 hours" problem. People do go to the park, but only stay for a few hours. And, yes, some people do skip the park entirely. And the main factor driving all that is that there just "isn't enough to do". A solitary E-ticket isn't going to solve that and neither is an Avatar Land with only 2 rides (assuming it actually gets 2 rides).
To get people to stay in the park, there needs to be more activities, especially for guests who aren't interested in walking around on the animal trails. And, as mentioned, there's not a lot to do indoors which can play a big role if it is very hot or having a lot of rain.
And if people can't even tolerate KS... I don't know. That ride is not that bumpy. Disney can only go so far in making things accessible for everyone. I don't think it needs dark rides up the yin yang... Which it kind of feels like you are suggesting it needs. I don't want AK to be the MK. It should be a bit (notice I said just a bit) more wild.
Sure there's a limit to how far that Disney should go to make things accessible to everyone -- and they are no where near that limit for DAK. If one cannot handle thrill rides, then the options there are basically shows or animal trails. Which is fine, but is not appealing to a lot of guests.
No one is suggesting that they remake the park into only having dark rides, but starting with, I dunno,
one dark ride in the park would be a good thing. The relaxing, but immersive experiences is what made Disney into the theme park destination it is today because they have broad appeal and good repeatability and basically missing from DAK. Where is the PotC or HM for DAK? The types of rides that become a draw for the experience, not the thrill.
I don't want DAK to be "a copy of the MK, but with animals", but I
do certainly want it to be a lot more
like MK than not like it. There's some good reasons why MK is the most visited theme park in the world and having a ton of different rides with different experiences that are accessible to everyone is a big part of it. I actually think DAK is the best park at WDW; it's great to just walk around in and take in the ambiance but not everyone enjoys that. It needs more attractions to keep people occupied and wanting to come back.