[souffle]

I'm so sorry for your loss.
I'm afraid that regardless of what the pack says those pods are not safe for hamsters. The fibres do not digest and can indeed block up the bowel and cause the symptoms you have seen. Some hamsters don't eat it but others will try and ingest the fabric.
It wasn't necessarily this though and could well have been a problem inside such as a tumour, cyst or a womb infection.
It's very hard to fix and of these things in such small and delicate little creatures.
I hope your memories bring you joy though as she sounds to have enjoyed a lovely happy and loved life x