I don't get why they are so adamant on having those role locks at this day and age.
The only real reason I can really think of is that people will realize how lazy they have gotten in designing new armour cause they really only design 2 new sets for ALL JOBS (see EW dungeon gear drops).
And it doesn't help that many in between gear are recolors of previous gear which quite ironically isn't even ported to another role for the most part.

It's just pure lazyness at this point but people somehow still defend them for it