What are you doing that you need to have access to warp multiple times in less than 10 minutes that you also cant sub blm?
just carry around a single warp cudgel if the rings recharge is not enough
...or Crazy idea. Instead of that, just make the item that already exists properly usable.
We don't need to devote 5 inventory to warp.
I agree with both of you.
Warp/fast travel shouldn't really be limited to items or support job. I do have multiple forms of warp so it's not a problem for me, but I also don't understand why warp rings can't just be unlimited uses, 1 minute to reuse. Or just a global ability. You die and are granted the option to return to your home point, so the option already exists in the game's coding. What's the difference just making this option available to everyone? Having to carry a treat staff, warp cudgel, rings, ram staff etc are just inventory cloggers for the purpose of fast travel. Seems redundant and a slight inconvenience. But whatever.
I also don't think there's any situation where you would warp and then need to do it again within 10 minutes, where you can't just sub BLM to warp again while your rings ticks down. You warped home, if you're going to warp again, change your sub (yes that's annoying in ambuscade losing buffs and resetting lua toggles etc). So it's not really an impediment in any way, just an inconvenience.
Tldr - kinda not an issue but I can see the argument both ways.