Yoshida on "carrying" other people

[linayar]

An 8 player static is very inconvenient, and in an 8 player PuG you're not really positioned to make a real difference either. 4 is the ideal for this game. WoW has 5 player Mythics and legit solo challenges, which give you a real reason to become as proficient as possible even if you're not raiding with a static. These are the kinds of things that motivate improvement within the casual community, and FFXIV severely lacks them.

It's a good size that can give room to a wide range of mechanics for the party to handle. Only one tank means no tank swap mechanic.

WoW has 5-player Mythics, but they also have 10-30 player LFR/Normal/Heroic and 20-player Mythics.

And since Yoshida is hesitant on 4-player difficult contents, it means either 8-player or 24+ player contents.

Not really interested in your whole conversation but...

2x larger than a light party, 4x larger than a duo.

Yes, not that much bigger: 4 more players than a light party, 6 more players than a duo. When the scale is small, 2x or 3x is still small.

[Nethereal]

Yes, not that much bigger: 4 more players than a light party, 6 more players than a duo. When the scale is small, 2x or 3x is still small.

You're not viewing players as factors but numbers. Players are additive, multiplicative, and qualitative.

With your logical it shouldn't matter if you have 24gb, 16gb, 12gb, 8gb, 4gb, or even 2gb of vram because the amount multiplied are small.
The actual number is only a reference point to allow you to conveniently understand how things should function should you add or multiply the value it doesn't explain the intricacies of the factors. The difference is immense.