The devil needs no additional advocates, and your retort failed to address my concern anyway.
Time in this game has value--personally and monetarily--and having that time maliciously wasted or intentionally sabotaged should not be permitted.
In fact, this exact sentiment IS supported by the ToS, and enforced... in instanced content. People who troll parties through duty finder or intentionally wipe groups during trials or mechanic-heavy bosses, they face consequences for that wasting of time and ruining of experience. It boils down to the same issue. It should merit the same consequences.