You cannot base the content of your entire game around the fear of what a bot may or may not do. If that would be the case then they could eliminate the gathering market completely and make all materials untradeable in the next ff mmo since its apparently such a game breaking problem in this one. But no matter what you add, the people who write the bot programs will try to monopolize on it.
This is a knee jerk (over)reaction to content that could genuinely be fun if done well. And very reminiscent of my mom when she disagreed with something I was interested in (You will end up homeless or in a ditch somewhere! Is that what you want!?) Change or just trying something new is not always a bad thing, sure bots will monopolize on it, because that is what they always do. So it falls on SE to make things fun for players and more of a pita for bots or get more strict with the botters. But that is a balance that can never truly be achieved. Right now the time vs cost of skins is not worth it for anyone to actively farm, which is why the bots don't do it en masse and also why the cost of items that use skins is so much higher. This also means that leatherworkers and weavers are at a much higher disadvantage and it drives the prices up all around for even their basic items which is a disadvantage to everyone.
If we went by the philosophy of cannot add new content because botters will overrun it and ruin it for everyone we wouldn't have treasure hunts or firmament. They may as well not added things like Eureka or Bozja either. It would be just straight msq and raids with untradeable drops. More fun and interesting content is what I want. Bots are a side effect of that, always have been always will be. But if SE isn't willing to crack down harder on the people who support that bots instead of just the bots themselves, it will forever be a growing problem. If you want to be rid of a weed, you need to dig up the root.
Adding a system that would be fun and have the benefit of allowing more people to make some gil is in no way a bad thing.