After first 500km with 2014 model Tenere, i think i've handled the seat height issue for most of the cases. In traffic congestions, i handle the bike with one of my foot. Cant say its so easy, but not bother me and i got used to it.
However, when it comes to curved ground, well, i barely handle the bike and try to move the bike and get out of there. One-foot-touch on the ground power is not that enough to keep the bike stand.

Well, i dont ride the bike off-road so much so far. so i cant comment further. I'll ride until i fall due to seat-height and then decide.
But my feeling is that i will not apply lowering kit.