Why ask this question at the Live Letter?

[Ultimatecalibur]

If they can just give us a multi glamour slot that would fix the problem like a tank gear share with paldain and warrior that can put both glamour on it so when job swap the glamour will swap in between

That was not done because of a data load. You do realize that your PS3/PS4/PC and the servers are pretty much continuously trading your character information, other players character information and other data back and forth constantly? Glamour slots would be adding 10 more sets of equipment data back and forth even if you are not glamoring stuff.

[Everdark]

Q22: Are there any plans to remove restrictions on the glamour system (unable to glamour gear that the job/class cannot equip)?

A22: Unfortunately, there’s a certain image that we would like to sustain for FINAL FANTASY XIV. We feel that it would confuse the new players if they see casters in heavy armor and tanks in mage gear.

This answer actually makes no sense. Most of the "Mage" gear is open to all classes, so they clearly have no problem with DoW looking like DoM.

[Morzy]

There are disadvantages and advantages to having the same gear fit multiple classes.

However if you ask me I would be more than happy with my ilvl 60 gathering gear that can be used on both my Miner and botanist. It saves gil and a lot of valuable materia.

[Marxam]

This chick is wearing light armor and she had the ninja moveset while us nins only get cloth gear. I'm not confused, I'm impressed and I want.

[myahele]

If that's their reasoning then they shouldn't allow gear that's clearly for DoM to be equitable by DoW. Its pretty rediculous that DoW can wear robes and Wizard hats, yet DoW stays for DoW -_-

I can understand the limitation for post 50 but below that?