Why does this event have bound items

[octavos]

Hi devs, love the new event for the items implemented. But why are they bound...can't even sell them...or collect them on a secondary market. I play 3 characters, and noway going to be able to grind all the sets in allowed time...even if I were to buy elix.

If they are bound...then add a plat option. because last event I was able to buy the vanitys for gold after a long break, which helped tons because it felt like I never left at all.

A good example of this is the popcorn back vanity. And the other forgotten vanity event.

2 options, happy player. If you are worried about influx of items...no fear.....they are bound lol....and more moneyz because I WILL buy plat

Thank you.