[DEV Question] Why is this allowed?

[JunseiKei]

Weren't people able to enter Duties with Crafting/Gathering accessories? or rather, entirely dressed in Crafting/Gathering gear? Or are they still able to?

They had been able to until 1) SE made it so if the gear was so far under the ilevel for the dungeon, no EXP was gained (cannot SB) and 2) locked newer gear to Discipline of Land or Hand. Before that, yes, it was fairly common to see people in half crafting or gathering gear to SB for materia. It was incredibly frustrating.

If the same player came with i110 head, hands, and feet, no one would even have noticed...

People are only bitching about this coz it's a weapon, if it was any other piece, it wouldn't matter at all.

Then you come across someone like me who says, "Dude. Why the hell are you using something that's 60 main stat below the minimum?" if it was an accessory, then probably kick them after advising them that they still need to gear up and this as not the current place to use to gear up.

While I'm sure the last sentence was sarcasm, Underdog2204 was pointing out a valid observation. People tend to overlook DPS unless things go wrong, like failing a DPS check. Which can imply various things, including, but not limited to:

1) multiple DPS are under-geared;
2) one DPS is severely under-geared to the point others are unable to make up the loss;
3) everyone's gear is fine, but they are not utilizing things correctly).

It's much easier to pick up on if a tank is under-geared (HP being below thresholds that are common) or if a healer is ill-equipped and struggling to keep the party up.

However, yes, it's all the more important in this situation since the weapon caps your other stats. As it's been stated before, and I'll use my own experience testing it, with all 270 gear but the weapon, which was i110, my DPS and healing potential was halved. Just because of the weapon. That's a huge issue and the current minimum ilevel requirement allows this flaw to slip by.