They started by disengaging the throttle and clutch.

The "tin" is part of the whole assembly. So, yea the engine can be
easily removed in six minutes. A lift it helpful, but not necessary.

The "bitch" of the whole thing (IMHO) is finding someone with skinny
forearms that can reach behind the fan shroud to undo that 2'oclock nut.
Many times it is left out upon reassembly.

The record, AFAIK, is 90 seconds to have 2 people remove a running engine
out of a Beetle, pull it to a line, and put it back inside the Beetle to
have it running again across a finish line.
YES I said 90 seconds.  8^o

It is in one of my old VW mags.

6 minutes is possible if everything easily comes apart or off with ease.  I
have not found that to be the case here in the salt/rust belt of Chicago.
It usually takes me 20-30 to leisurely pull a carbed Beetle engine.