I don't buy that argument. My ride uses 0w-16 and I live in Las Vegas, so no, I use it with 100% confidence. I believe my 2021 Rav4 Hybrid will easily reach 200,000+ miles running on 0w-16 with 5,000 mile drains, and without burning oil.
I've heard the same lame excuses about "more protection" with heavier oils, but I put over 246,000 miles on a 2007 Toyota Yaris running only 0w-20 and when I sold it, it burned NO oil, and it had the same pep, and vigor of when I bought it with 4 miles on the odo.
What a lot of people do not understand is that today's best engines have very thin tolerances between metal parts, and only a thinner oil will protect those parts better than a thicker one. For my SUV, 5w30 offers LESS protection than 0w16. There are just too many taxi companies the world over that run Toyota hybrids with ow-20 and 0w-16 that show no problems over millions of miles.