Thank you for the response.
The issue with arbitrary standards -and with them, arbitrary conclusions- is problematic but only provided the subject of interest is initially allowing them to be so: this means that the work in question was never really intellectual and that any interpretation of it being as, is accomplished thanks to a number of guises or references woven here and there to create a pretty convincing illusion.
So, in short, if the anime in question can allow for a possibility of an interpretation besides what the man behind it truly intends, then it was never worth considering in any titling of 'filtering machines': naturally, proceeding with this, nothing you've listed qualifies: A meaningful message, a discernible -but not so easily done- theme, a continuous motif –all of these, even when put together as they were in Evangelion, do not necessarily result in qualification.
If all it takes is a Youtuber pinning down every reference and connecting dots to curate an explanation, then, the work is not at all intellectual. No. It can't possibly be, provided the connotation I'm associating intellectual with: not accessible.
Most people, even in a literal dumbed down step by step guide into a Navier-Stokes equation, won't ever develop a means to wrap their heads around it.
Someone can go through the most careful, one to one explanation, giving an abstract of an abstract of an abstract, condensing all that matters into a few equations, shed some historical context and still, it wouldn't make sense
Here, this does the job pretty well: https://www.claymath.org/wp-content/uploads/2022/06/navierstokes.pdf
but about nearly everyone would just ignore it entirely. That's what you need: something that inherently rouses the urge to ignore and this is only producible through complication.
Look at the other anime you've listed: https://myanimelist.net/anime/951/Chibi_Maruko-chanPost too long. Click here to view the full text.