He mentioned the .38 Auto round that was first made in the year 1900. He never mentioned the .38 Super.
The .38 Super is popular in Mexico since the civilians can’t have military cartridges but even then it wouldn’t be my first choice for a survival round.
The upside of having guns for funky cartridges is that in the last few months while everyone is crying the blues over 9mm, .38 Special, .357 Mag, .380, .40 S&W, and .45 ACP... I’ve had no trouble finding .44 Special and Russian (for assorted .44’s inc. my 696), .32-20 for a Colt Army Special, .45 Schofield for an elderly New Service that I had “Fitz’d”, and .38 Super (found one store with dusty boxes of 50 for $12). Even found an old box of .38/44 metal piercing (!) For shotguns, there’s still stacks of 16 ga. buck and slugs... the buck is #1 (12 .30 pellets, compared to 9 .33 in 12 ga - I think it’s actually better)