Looks Great To Me!!
Keeping the RRPM a little low is absolutely normal to strech the glide, he didn't auto aligned to taxiway so he had to make it otherwise, it was what I would consider a Zero speed touchdown so I see absolutely no problem with going for the concrete, it's even safer since the ground could be mushy and he could get stuck with something. The machine obviously gains RRPM during the flare so he might it kept it there on purpose.
I loved it.