This isn't to say they're perfect but if you care about your privacy and you're in the 99.9999% that isn't being explicitly targeted by a TLA it's your best choice.
Yes, Apple has made some changes which mitigate some of that, just as Microsoft made a lot of changes when they were called out as the security joke of the computer world. Neither example though speak to my point.
My point, and my experience in trying to get more secure systems out there, is that regular consumers, those between the boundaries of the upper and lower first standard deviation, the folks who go out and buy most of the phones or computers or internet of things type devices like fitness bracelets do not pay more for a device with equivalent features but better security. And the people two standard deviations out who would pay extra, can't or won't pay extra enough to cover for those who don't.
There is another experiment running right now, its called the Blackphone[1], I'm watching it to see how they do. If history repeats itself they will got out of business in 1.5 to 2 years. I liked the editorial though which was "Why should I have to buy this phone to get these features?" its at the heart of my opinion on the marginal market value of 'security' in an electronic device.