So unless Festool were to send out a questionnaire to all currently known owners of the Kapex, the poll would not tell you a whole lot.
Why all the trouble of (another unreliable) poll?
Festool has the data in its repair dept. as well as # of units produced, # of units sold, etc. Living in the digital age, Festool has captured all the vital statistics and it has its reasons why it would not want to share them.
The Kapex problem (real or imaginary) would not go away and people on the opposite side would continue to believe what they believe in the absence of any official hard data available to them.
Yes, the worries (real or imaginary) would affect sales/Festool's reputation and the confidence of some owners (me included; mine is... let me check...almost three years old now with three months left on the warranty). But it is not the end of the world. Of course, if mine became a junk, I would not replace it with another Kapex (small or large).
As for the review, the title (seven years) and the battered look of the saw gave me a sense of hope and to me, that's the most useful piece of info. to take away. (I, however, did not like seeing the guard removed even for the purposes of reviewing.)