Their infamous obsession with secrecy meant that all the test phones were hidden in cases that masked the problem, thereby inadvertently tainting their test res

Their infamous obsession with secrecy meant that all the test phones were hidden in cases that masked the problem, thereby inadvertently tainting their test results and preventing them from discovering the problem. It should've shown up in an EM simulator before the hardware design was even finalized. The fact that it didn't explains why Apple is just now getting around to hiring some RF engineers.