I don't think it's a big deal because from what I've seen and read (trailer, interwebs, haven't seen the doc) it's a documentary about m/m tickling. And I think even a specific group who did/does m/m tickling. That's just a very small part of the tickling community in general, or at least not the majority.
If a doc came out saying that nest, canelli, kujman, magic touch, real tickling, feetonline, fmconcepts, tickling paradise, tickle abuse and tickle intensive were all evil, weell then I'd think that's a big deal lol.
But either way evil tickling companies existing doesn't mean regular people into tickling are evil. Like after 50 shades came out there were people joking bdsm, but they were the same people who joked it before the movie came out. I don't think 50 shades convinced people bdsm is bad, so hopefully tickled won't do the same.
One more thing. If the doc attacks m/m tickling, then I think most people will view it as an attack on gay men or straight men who like to do stuff with other men. The tickling part doesn't matter at that point.