Scaling and Past Content

[Elladie]

People who are doing out of date content will not want to find it too much of a struggle, because they will mostly being doing it as a roulette duty. If you change the item sync drastically, people will start leaving as soon as 'difficult' duties pop, making it harder for new players to clear them. The people who find 'harder' duties in a roulette more 'fun' - where more fun means slower - are few and far between. This is a much more significant 'con' than you are presuming.

If you want to experience an out of date fight at more like its original challenge level, organise it through your FC, discord channels, party finder etc and have everyone gear down to the appropriate minimum ilevel

[Mhaeric]

They already added this feature. Queue with minimum ilevel selected in the duty finder options and echo turned off and it will sync down to the minimum ilevel instead of the usual maximum ilevel cap and block any echo buffing.