PN makes it appear more like a traditional programming language on the surface, even if it's still read in a kind of strange way. So it might help spread the joy of stack languages by seeming more easily approachable. For me personally, RPN is still unfamiliar enough that this kind of PN feels more comfortable.

Yep, I think in Taka the most confusing case is lists - writing

    list [
     1
     2
     3
    ]

creates the list [3 2 1]. (When indexing, the first item of the list is the one on top of the stack.) This has tripped me up several times.