Why would any potential buyer search that specified term instead of going to Apple's official tech specs page[1], which said absolutely nothing about the differences between the 4 ports? > 95% of the users won't have the need of more than 2 full bandwidth connection might be true, but a lot of them might have the expectation of using that two ports on either side.
Actually on that official tech specs page Apple bluntly claimed that:
Four Thunderbolt 3 (USB-C) ports with support for:
Charging
DisplayPort
Thunderbolt (up to 40 Gbps)
USB 3.1 Gen 2 (up to 10 Gbps)
There's even no footnotes to say that 2 of them actually cannot reach 40Gbps bandwidth. If this is not false advertising I don't know what is.
I agree it should be mentioned on that page too ("up to" would probably get them out of any false advertising claims). It's doubly confusing because there are 13" models with only 2 ports vs 4.
Actually on that official tech specs page Apple bluntly claimed that:
There's even no footnotes to say that 2 of them actually cannot reach 40Gbps bandwidth. If this is not false advertising I don't know what is.[1] https://www.apple.com/macbook-pro/specs/