Dude is reeeeeally reaching to make that comparison and doesn't seem to know a whole lot about music fundamentals. He chose some unusually dark surf that used some of the darker modes to make the connection when in reality most "surf" music doesn't do that.
Black Metal, as I've learned this year due to working with my Norwegian buddy Jarvse, is more defined by big full chords being picked extremely fast to get that thick, mushy, tonally complex rhythm sound whereas Surf is more defined by single note melody licks accented with quirky "raked" chords. So the theory that simply taking the distortion away doesn't fly.
Mid career Metallica (pre Black album) has more in common with Surf than Black metal and even that's a stretch.
A lot of early Hardcore Punk on the other hand has buttloads in common with Surf but that makes sense because of the surfer to skater evolution... particularly with the west coast bands.
East Bay Ray was definitely Surf inspired and Agent Orange even did Surf covers.