Yup, in mine it only operates 2 of the double fixtures over the walkway in the kitchen/living room area (if those fixtures are themselves on). Before I switched to LEDs I estimated with every light on (including storage and outside) I would draw about 35 amps, so maybe around 30 just inside. Way too much for one little switch unless it operated a relay - which would use more energy when boondocking. So I can understand why they wouldn't wire everything to a master switch. Wouldn't be a problem now in mine, at about 3.5 amps for everything.
2008 FR Salem 26TBUD
2010 FR R-Pod 171 (2009-2015)
2010 Chevy Suburban
Honda EU3000is inverter-generator