The not-so-smart members of the public need to be shielded from references that smarter people can put into context.

Congratulations Canada. You have simultaneously demonstrated that:
1. You have no sense of humor.
2. Everything conservatives say about "politically correct" censorship is absolutely true.
3. You're not really a free country.

(Don't be fooled by the subterfuge that the entity enacting this ban is a "private organization." The last station that seriously defied them saw the government sell their broadcast license out from under them to another company while the case was still being tried.)

Dire Straits song banned in Canada