I just figured as this is a pretty significant update, it would seem odd that they would force users to manually update. The non-techy users most likely wouldn't even know about the update and from a security standpoint that's bad practice.
Most likely because it's not officially released yet. Supposedly it's been released to select groups of people (not really sure what that means). According to Rogers software update schedule, it's still listed as coming soon. If you want to install now you'll have to download the PC Suite software referenced above using your computer.