You are basically suggesting getting carried by duty finder. That works fine for one person, but when you have half the party with 3.5k HP in titan, not so much. Plus no levi weapons at ~ilvl60, they drop from EX. And when all the geared players are doing fun new expansion content, you end up with 2-3 people trying to carry 5-6.
If you're going into 2.4 content with a weapon below 90, and 2.5 content with a weapon below 100, you are getting carried. Try a crystalis some time with all dps weapons below 90, see how well that goes.
You can have an average ilvl of 100 and be less useful to your party than someone with an average ilvl of 40 (130 weapon/body/pants). Hitting the minimum ilvl with the weakest slots leaves your party better off with you getting locked out of the fight.
Plus with expansion, there likely will be no soldiery tomes, and poetic tomes will likely be significantly decreased from where soldiery tomes are now for a month or two.
