That would be a huge drawback for me, if I received an item like that! I think the way we package our items reflects how much value we see in them. If I'd purchased something and received it like that, I would wonder if the seller even cared about their work!
I mean, nice packaging doesn't have to be expensive, but you should at least want to do something to protect your items. Especially cloth items; they could easily soak up any scents in the journey over, or get ruined if something is spilled on the package. (This is why I use bubble or poly mailers; the plastic adds an extra barrier.)
It makes me sad to hear stories like this.