true, it would be less interesting without the live. but the combination of beauty shots where she just ogle at them mixed in with more interesting shots (choreography/action etc.) is usually what we like about H!P PV's anyway. that's what Renai Hunter is and nobody is claiming that PV to be terrible.
i think perhaps we're used to PV's seeming less static/more interesting because there is more girls to showcase, and therefore the shots are more varied by default. and possibly a good strategy to use when a PV is released by a duo is to include more shots to off set the lack of change in the people on screen, but again... this is a b-side. even The Matenrou Show, an A-side, didn't get this much.
that being said, Loving you Too much is equally deserving of praise for how far they went to make a PV for a b-side. really, the only thing that would make that PV better is better styling. everything else was awesome!