For me the criteria for being able to take a bike off road comfortably is the ability to spin a donut so you can change directions easily when things are deteriorating. This manuever is needed going uphill, downhill, and flat. Prior to taking an inch out of the suspension I was about 70% depending on terrain - hills being easier by nature of their intrinsic bias. After lowering I can spin a donut easily anyhwere and safely and quickly turn around without looking like a dork making a ten point turn. A lower seat would not work well for me since the pegs with the standard seat are perfect for the sitting to standing transition. With the Touratech risers I am standing nearly all the time off road.I would be cramped with the low seat - I tried it.
If I had to "Captain Morgan" the bike, I would not ride it. Whatever works for you is the right answer.
my favorite bike - R1200GS