It could be very inconvenient to unplug the router. The real issue is what level of threat you hope to counter. An unexpected extra clock or an extra coffee machine in the room, as mentioned in the article, would not represent a very high-level surveillance tactic. I mean, to try something as blatant as that would be very unimaginative, or at best, evidence of working with very limited options. Is there really a two-bit Airbnb surveillance problem?