If so the number .015 would not apply to the general population of stars.
Transits are periodic.
We should be able to take advantage of this. If you detect parts of a transit on different periods it as good as getting multiple observations of the same transit. The only way you could hope to do that would be to pick a few small fields and hit them every night. Also and maybe more importantly, a periodic signal can be detected at a much lower signal to noise ratio. Given enough data points there are many signal processing tricks that would apply.