Without taking a position on this particular case, I must observe that if you are going to boycott every company that has done something that allows some government to spy on customers, your list of vendors will be down to... I was going to say your local grocery shop, but thinking about it, they probably have a credit card reader, and I'd be astonished if there weren't at least some cases of governments tracking people via credit card purchases.
If they send data from my phone (potentially private information) to a foreign country without telling me, then I think its reasonable to boycott them. If I knew that my local grocery store sent my private information to china I would boycott them too. But I'm fairly convinced that they don't do that.
Eh, it's a push service. They aren't mining your information. It's used for their myXperia service, which is used to locate your device with a sound alert or display its position on a map. You can also erase data and/or lock your device if you lose it.[1]
Google, MS, Apple, Facebook and Twitter operate out a foreign county for most of us. At most they "tell" by way of click through agreements wherein you sign away your firstborn and then some, otherweise you are without smartphones and social media.