Gnome 3, Unity, and Xfce are practically tied on 2nd place.
Cinnamon is only available via the "Other" option which means that any claim of Cinnamon being more popular than Gnome 3 is unfounded.
Gnome is #2 with more than twice as many votes as Xfce.
This is the only listed poll in which Gnome 3 does not occupy one of the top spots. Considering it's Mint, it's not surprising. Gnome 3 still beat Unity, btw.
Gnome 3 is #2.
Gnome 3 is far in front of Cinnamon, Unity, MATE,…
Outdated version of that poll. Gnome 3 is on #3 spot in both the outdated and the current one, though.
No one even voted for Unity or Cinnamon so far.
And still Gnome 3 is #1 here.
If your links to polls made a point, then to make KDE’s Plasma Desktop default and drop Cinnamon because no one except the Mint crowd seems to actually care and Xfce established itself as alternative for followers of Gnome's traditional UI. The polls also are evidence that Gnome 3 is actually well received, ranking among the top spots.