I don't think it's odd. The cervix and surrounding areas can be a huge pleasure zone for a lot of women, so long as the style preferred is known. I believe most would say they don't like it being jabbed, pounded, or "punched" with anything. But a bump, rub, graze, push/pressure, etc...And of course, the spots around the cervix are known to give pleasure.
This is where an upward curve can help, naturally contouring away from directly "stabbing" the cervix. The cervix pulls back and up during high arousal. So if one with an upward curve feels it after, it may be moving into a reachable angle. Angles, positions, and thrusting technique can help. Pushing all the way in, kegeling and pivoting the head up (missionary) while slowly grinding.
As for the surveys...well, like most open surveys, results may be skewed by those who are more confident in showing, or whom the stereotype favors. In other words, with race, guys who didn't fit the rumor would be less inclined to show. Take those with a grain of salt. More here confirm their untruth than not.