A much greater concern is that this exposes a serious flaw in the security of communication services we have all been taking advantage of for decades. There are simply too many individuals out there attempting to adopt new technologies into their homes who either aren't aware of the potential risks involved in using such equipment, or simply don't care.
If the individual users aren't willing to accept the consequences of haphazardly using technology capable of communicating over an external connection, without first educating themselves on how to prevent such problems (where possible), then the companies who provide these services will have no choice but to contractually demand that the user does not connect any hardware to their system that the provider don't completely control by themselves, such as how cable companies require a converter box of their own to use their television services.
It's really difficult to find middle ground on this issue that completely absolves the end user from responsibility when such things happen without sacrificing convenience in the process. The service was provided to a device the end user was supposed to be in control of... therefore the service was carried out as requested.