It's just that the article is mostly talking about AM radio, and they'd be dealing with stuff like 1920s carbon mics. So maybe modern mics could still be causin

It's just that the article is mostly talking about AM radio, and they'd be dealing with stuff like 1920s carbon mics. So maybe modern mics could still be causing issues if they're chosen for a specific male voice type, but it's a stretch to apply 1920s data directly to the modern day. Everything's still a lot more accurate overall.