LOL... the amount of fanboyism is incrediblely high. Apple cannot do wrong is again reflected by Apple's fans.
Samsung SDI appeared on Apple's suppliers list. The same company was listed on 2014,2015. What makes you guys think Samsung SDI will dropped from list this year.
It is all about potential. There weren't any problem does not means there won't be problem in the future. If Apple really used Samsung SDI's battery, then we can reasonable assume same problem will occurs on iPhone.
I do not know why when it comes to Apple, problem will magically go away.
Again, Apple fans are denying problems. Just like they did when MacBook Pro graphic card problem and iPhone 6 touch disease.
Keep denying and waiting for battery exploding on you. Then you guys will know there might be a problem with battery.