at least for my use case, refile goto should push mark in the target buffer after visiting the buffer, before jumping.  rationale: it can be a big jump.  m-< pushes mark for that reason.  i think i saw that in the manual years ago.  :)

i am often in my-big-subtree, someplace, and go someplace else.  i want to return to that place in my-big-subtree.  refile goto loses the previous position.  i want to c-u c-spc to get to where i was.

completely unrelated: global mark ring is orthogonal, as i know exactly where i want to go, but it could take me anywhere.  also, i've never gotten global mark ring to work for me.  i think maybe global marks should work like vundo or undo-tree, where you have up down right left and i don't think it should be a ring but a tree.  when i jump, i often don't know that i want to return so do not set the mark.  to me, the big jump of refile goto in the target buffer is the reasonable automatic mark setter like  m-<.  also unrelated is switching buffers; i think in terms of headings.