I'm not sure I would use the term irresponsible, but as we typically lose power several times annually, I couldn't image not having a backup plan. I use a layered approach,

A large computer UPS maintains the return pump, heater Apex, router and cable modem for about 2 hours. (Apex alerts my via text and email of outage.)
A Vortech battery backup maintains flow (2XMP40s)

If the outage lasts longer than an hour, I have a 7KW gasoline generator that is wired directly into the house.