Chain Slip at front changing from large to small front chain wheel (with large cog at back)
I wouldn't expect to throw the chain inwards or outwards (at least on my 3x8 setup) if the limit screws are correct.  This is true whatever sprocket I'm using and even if I push the lever the wrong way (it's not unknown when I'm tired especially if I've recently been riding another bike).  That said you shouldn't be shifting like that as you acknowledge.  The tolerances are likely to be tighter with a 9 speed chain but I would say there's no harm in a light tweak of the limit screws and tension, in fact after a few 10s of miles on new cables or after other significant changes I tend to find that some adjustment is needed as things bed in.