Their existance is not really a problem, but how they were implemented is. Duty recorder could've been very good for analyzing fights, but for reasons they only know it's bogged down by stupid restrictions. as for Bard performance, well I don't have it unlocked I only know that 4.2 ruined the sounds till 4.3, but ehi some ppl don't have barbershop unlocked either I don't think they are asking why SE wasted time on that either.

So long that additions to the game are made well I don't really see a problem with their existance.