I'm not surprised. Back in early 2016, I was in a battle to get Verizon to push available security patches. During that time, the CFO stated that "He knew what customers wanted and it wasn't unlimited data" (paraphrased from memory). At that time, I put together an email to Verizon describing what I expected to happen by their no patch and unlimited data policies... Verizon would see a dramatic reduction in connection starts by Q4 and be forced to change. Q3 reports proved me right and they finally pushed patches (by this time there were over 300 security vulnerabilities that needed patching on some phones). I assume that Q1-2017 wasn't looking any better so they brought back unlimited data plans. BTW, by the time they pushed patches I already convinced my company to switch from Verizon for security reasons.