Yeah, but that's messy and can lead to confusion unless you put a separate note stating why the figures are the way they are. I'd much prefer it to be something innate to the template and clean. Something that will change the Attribute Type entry to the appropriate modifier name (so that it says Str or Con, or Wis instead of Dex/Int).
I completely understand if it's not a possibility, but I think if we can do it for ranged basic attacks with "|StrRAttack=yes" why not with AC or any other defense?
EDIT: Oddly enough, it does not seem as if the "|StrRAttack=yes" is working either (unless I'm just doing it wrong). It puts the appropriate #'s in the boxes and lables the attribute as being Str for the basic ranged attack, but it's not totaling it correctly.