Imho not that surprising. This is a forum of tinkerers. And unlike all Maemo devices up to the N900, the N9 was designed to be less hackable/extendable, the major culprits being:

• Aegis (fortunately there are some promising community efforts)
• lack of SD card slot (very useful e.g. when tinkering with different OSes)
• no built-in h/w keyboard
• not many hardware buttons
• no IR or FM transmitter

The seemingly rather small bump in CPU speed, the lack of hardware HD video decoding and only rudimentary use of NFC doesn't help much either.

If they had taken the N900's design, just used a higher res screen (e.g. like the one on the Galaxy Note: 1280x800, multi-touch AND pressure sensitive stylus) and bumped the CPU to dual core (Harmattan is a true multi-threading multi-tasking OS after all) with corresponding GPU I'm quite sure it would have received near 100% in this poll.