OP did not ride around in rain. He fully submerged his phone into a swimming pool filled with chlorinated water. If Apple advertises swimming with the phone, then I fully agree with you. In fact, I strongly believe that Apple should back any and all warranty claims for water damage with S2 watches damaged from normal swimming.
While I don't necessarily agree that it's OP's fault for not realizing first batch production runs are often faulty (I think it's OP's fault and anyone else's fault who thinks this is a submergible phone, a phone to shower with so people can watch netflix, etc.), what she said is true. They are manufacturing in an extreme rush to meet demand, it's a new product with new specs and machinery, etc.
There are many people with creaking phones when you use light torsional twisting along the longitudinal axis. I've experienced this on all the 7 pluses I've handled. If you can hear creaking, there will be ingress points for water. This creaking is certainly a manufacturing or design defect, and I can assure you that the water rating and resistance design did not account for it.
In order to be water resistant, EVERY seal and barrier to water needs to be functioning at 100%. One ingress point may not catastrophically affect a phone in a thunderstorm, but it probably will affect one that is completely submerged, even if just for a minute at 2 feet.