Given how user data (especially location data) is a very sensitive issue nowadays, HTC was quick to clarify the reason as to why they are collecting said data. As it turns out the reason they are collecting the data is because when an error occurs, the data will be used to send in error reports. This error reporting system can be found not just on phones but also computers i.e. Windows when a program crashes and you have the option of sending a report on the crash.
“We’ve seen some questions about Sensation and Evo 3D and want to provide more information. HTC, like most manufacturers, has an opt-in error reporting function built in to our devices. If your phone experiences an error, you have the option of “Telling HTC” so we can make improvements to our phones. Details about this are in our privacy policy on each device and in order for data to be collected, you have to opt-in. If you do opt-in, we protect your privacy by de-identifing and encrypting the data.
HTC is committed to protecting your privacy and that means a commitment to clear opt-in/opt-out as the standard for collecting any information we need to serve you better.”
Good on HTC for the swift and succinct response! They seem to be doing a good job these days at listening to the concerns and requests of their customers. However if you still feel slightly creeped out by all this data collection, there is still an option for you to root your device and install the ROM which removes the system app from your device.