It is impossible to get a 100% melt of feeling on all wear off states due to the limitation the workbench has. The concept idea of the corrosion is that its some "alien" goo starting to eat its way through the gun on the parts it touches the metal/synthetics. The wear off states basically show hoe much of the goo has touched the gun and how far the corrosion has spred. I did my best to deliver this on every wear off state but it is true it looks the most spactacular on Battle Scarred.
Not showing off the in betweens is due to the fact that people generally are not interested in those pictures - considering your concern I made and uploaded an image showing all states of wear off.
I understand your point and you stated your request in a critical but honest way and personally think your concern is very legit. However It made me think do you gerneally state this ammount of concern when it comes to rendered and post edited skins as well? Because there are some in the workshop using occlusion / normal / bump / combination of other shaders to make their skin look way beyond the point the CS:GO engine could have handle ingame. And they just upload those without any ingame shots.This reached a point where in the Polycount contest it is forbidden to use any other screenshot than ingame or workbench for the final submission of this contest.

regardless I added a full wear off image to the screenshot-list of this skin in your request. I have to say I did focus on FN and BS the most and did a lot of tweeking to get the in between to a point where they deliver this molten feeling the best they could.

http://images.akamai.steamusercontent.com/ugc/268341211774795752/6080CEFADF280865CE8844050EC80397665CB506/

And do not get me wrong I very much appreciate your comment AND concern. =)

It is true that a large amount of workshop submissions are poorly represented by their provided images.

Have to say the medium wear versions actually look much better than I had thought, so my accusation of you intentionally not providing pictures of those was misplaced. My apologies for that.

No need to apologise (very much appreciated nevertheless). Your original comment was "I fear you're intentionally not showing..." so its an accusation from your point of view not like "You ARE intentinally not showing..." so an argument that has objective value to me and getting offended by that would be my own fault.
Its actually nice to have a person pointing out critism in a well mannered way for once :D
and critisism is the basis of getting better.

I am actually glad you brought that up beause in the contest this skin was made there might be people who think the same and now I can provide an accurate representation of all wear off states.
It really did not think people are concerned about the mid wear states - so thank you for pointing that out to me.