No, Apple devices generally aren't blacklisted. But what has pathfinding performance got to do with this thread? Maybe you should start a new thread to discuss that separately.
I think you missed the Point
-Is nothing to do with the PathFinder, yes I use the Pathfinder but the truth is to show that Webview is Miles a way to compete with Canvas+ I would say two different universes
The point was so you can see how slow is WebView executing exported Games from C2/C3 and for that I used the "Pathfinder" as you can see is very clear that they are huge delays in how is processing the C2 code, and I gave you the comparison with Canvas+ which for me is very clear to see who is best for performance
So yeah it is all related to the thread, did you ever think that perhaps maybe the problems related to stutters can be because of Webview delays in executing the code? between one thick and the other sometimes maybe there is a delay that may cause the stutters and other different problems maybe? this is just a theory to think about it, but I'm not an expert so it could be anything really, I just suggest some ideas in hope of helping fix the problem
by the way here is a Test done
in an Iphone 7 exported with Cocoon WebView
https://www.dropbox.com/s/ezute95v4o9rw64/Iphone7-WebView.mp4?dl=0
Let's not forget that these tests have nothing just the pathfinder events, still, we didn't add the Game Logic, menus etc.... and look the Performance, can you see anyone doing a Mobile Game like that
And you Right I think we should open a dedicated Thread for these things as is an important Topic
https://www.scirra.com/forum/viewtopic.php?f=191&t=201781&sid=1b195ea261512a544da05a8fdcff365f