Is my forage mix too dusty?

[milkshake2]

First time hamster owner here! I heard that forage mixes marketed towards reptiles can be suitable for hamsters, so I decided to buy some of Komodo's bearded dragon mix (Komodo Bearded Dragon Mix 80g | Reptile | Happy Pet) as it's locally available and its only ingredients are supposedly dandelion, marigold and rose petals.

The only thing I'm worried about is that the bag conents are somewhat crushed, to the point that there is a lot of dust in the bag from the broken-up dried leaves. I know I'm supposed to avoid sawdust and very fine/powdery sand for hamsters, so is this type of 'leaf dust' safe? Should I be sieving it out before putting it in the hammie's cage?

And on a related note, ARE reptile products like these safe for hamsters? Does anyone else use them?