I did, but I feel it only addressed why ATX exists and not why ITX should be the default. That huge cases, either supporting ATX or mITX, offer an easier install job was already a given, though we tend to use a PC 99% of the time while maybe 1% is for installing hardware. He did not address the elephant in the room: most PC people don't use more than a single GPU (if any) generally which is perfect for mITX.
The examples of people doing streaming or video editing also seems to exclude the solutions that most people already default to, namely external devices like USB peripherals. The example of PCIe storage is also far-fetched, as I looked into that recently. Basically, if you want PCIe storage that isn't an M.2 NVMe drive on a PCIe adapter, you're looking at enterprise and workstation hardware that has a lot higher price per GB and only slightly higher performance.
I'm trying my best to "fill" my Cerberus X with hardware, like a 10G networking card and a PCIe to M.2 adapter (both HHHL even, not by choice), but I'm still only half-way and I could just as well have went with an mATX board for that hardware or mITX if I didn't need/want the 10G card. That's what I get for putting my bet on multi-GPU which is all but dead at this time.