What are you on about? Literally drive north a bit towards Whistler, you can get out of the light pollution in an hour or two

lightpollutionmap.info/#zoom=8.01&lat=49.6027&lon=-122.7672&state=eyJiYXNlbWFwIjoiTGF5ZXJCaW5nUm9hZCIsIm92ZXJsYXkiOiJzYl8yMDI1Iiwib3ZlcmxheWNvbG9yIjpmYWxzZSwib3ZlcmxheW9wYWNpdHkiOiI2MCIsImZlYXR1cmVzb3BhY2l0eSI6Ijg1In0=

Have you never been there? This light pollution map wildly underestimates light pollution outside of cities. I can tell you from experience you're not getting nearly 22 mpsas skies anywhere near Pemberton.