To recap:
For pugs: its bad from any point of view due to the fact that everyone can roll on everything and nothing stops them to do so, being now the "unique" description of an item completely useless, even if they have already 1-2 or x number of coffers at their disposal. Forcing the hand of a pug player on using the books to actual drops instead of upgrade for currency gear. in worst case scenario, your will have to exchange your entire set because of poor rng, you may be good at clearing fights, but if your rolls are bad, you are bad from a dps/healing/tanking pov. Also for you its impossible to attempt gearing a second job because you are using all the tokens for your main class.

For statics: if you are a healer or a tank, or even a support dps like dancer, you will get your loot last, because the static requires more dps instead of making a progressive upgrade for all roles. Making Dps stronger at a faster rate, having tank and healer sacrifice both savage progress and upgrade in stats for other contents like dungeons and solo stuff. Statics can afford to gear up multiple job, as they progress they drop everything from coffers and use books for other items such as currency item.