git stash apply usability issues

(1) Looking at git-stash.sh I see a few uses of 'git diff' in apply_stash(). 
Shouldn't these use one of git-diff-{tree,index,files)? The reason is that 
porcelain 'git diff' invokes custom diff drivers (that in my case run a UI 
program), whereas the plumbing does not.

Is there a particular reason to use porcelain 'git diff'?

(2) when 'git stash apply' runs merge-recursive, it treats the current state 
as 'ours' and the stash as 'theirs'. IMHO it should be the other way round: 
I have stashed away changes to a binary file. Then committed a different 
modification to it, and now want to apply the stash. This results in a 
conflict that leaves the current state in the working tree, but I had 
preferred that the stashed binary file were in the working tree now.

What do other git-stash users think about changing the order?

-- Hannes