In my opinion, ....which is just an opinion
..Everything else that they talk about in those reviews, as far as performance and feel and lightwind capability (power, depower, jumping, turning speed, drift, relaunch, bar feel/feedback) is far more important that kite weight or size, or aspect ratio for that matter.
Read the reviews more closely, they don't know what size it is.
I don't believe 17M the correct number to win kite BINGO today though.
Magazines compare lightwind kites of all sizes together.
They review the Infinity and the Big Mama 14.5 right with the Fat Lady 17, Ozone Zephyr 17, North Dyno 15 & 17, OR Rise Lightwind 15, SS Turbine 17, Core 17 & 19, Speed 19 & 21 and so on.
The reviewers don't seem to care what size it is, they talk about what it does in what wind.
The last thing Kiteworld Mag review says, turns like a 14M and has the power of a 19M.