I think a lot of this comes from this being their first drop of product direct to consumers. My Shopify app is full of items ordered, shipped and recieved in the time it took to get shipping info from them. It could be a safety net for Shopify for new vendors and won't be as much of an issue in the future or maybe it was an price thing where vendors shipping less expensive items may be a little more willing to take the risk of shipping before getting funds from Shopify?
I am so excited by this , as a home grower I like the idea of vaping for health but found that I would either sacrifice flavour or dosing strength so have mostly stuck to dabs or combusting flower as have been disappointed with previous vape purchases.