Guys, it's HEDD Tower Mains vs. other mains speakers. PMC, ATC, etc. Huge monitors that are usually soffit-mounted, not just any big floorstander.
The general big vs. small discussion holds, but keep in mind that that Darko video shows HEDD breaking into the non-pro market. So the way you hear Heinz talking is mostly from the pro perspective, and then tailoring some of his comments to suit audiophiles.
These modular tower mains, like what's on offer by Barefoot and Neumann, are the new alternative to the huge box mains.