I just want to touch a little bit on the claim that "it is also frustrating to see that new Things get added to the game that make it easier, but since a couple of years basically Nothing has been added to make it more challenging"
In my few hours so far with the update I actually see it as being more challenging and fun with the addition of the revolver the sprain system and the weapon sway. Lets start with the obvious:
Revolver: Very Helpful in scaring off wolves but wolves seem to be more aggressive and willing to start running towards me from farther away. I could be wrong but I imagine they increased the Wolf detection range to make killing with the revolver harder. This is an effect to the game that cannot understate it's value added to the game. This game now feels a little more like PlayerVSWildlife rather than PlayerVSTime. This could be because of my increased willingness to deal with wolves now that I have a revolver but it seems the wolves are harder to deal with than when I played a couple of weeks ago.
Weapon sway: Hitting shots with the rifle was incredibly difficult to begin the day leading to my death of a bear because of multiple missed shots. The removal of the 'learnable' weapon sway was a good choice because it no longer makes things easier the more you play. This is similar to the system of the added benefits of Coffee or Tea, you can no longer drink 95% and get the same benefit from the other 5% that you could previously.
Sprain system: This is another system to the game that adds difficulty to the game, now shortcuts especially when you are over-encumbered is more of a risk and pain meds and bandages have a bigger purpose.
While I agree with some of the points you made and I too as a long term player want to see more important things added to the game, But please play the update I think It could change your relationship with multiple systems in the game. I personally have found myself more at war with the wildlife than before. I also believe that adding ways to protect yourself gives hinterland the ability to present more dangers. I really hope more fluffy's can make a return now that you could kill him easily inside of any cave they stick him in. I understand the hope for more custom options and such but you also have to understand that the story mode is incredibly handcuffing. They have to finish that and keep survival going at the same time so I wouldn't be too surprised to see some features not make it over immediately.