While Magento has already introduced the PWA Studio, why can’t we adopt it?

The reason is that the PWA Studio is not at all stable – the architecture is changing every now and then. We cannot really depend on them and it is very far away from production – merchants won’t wait that long. A simple, robust and fast PWA will be the most needed in the market by SMEs. Also, Magento PWA Studio is going to be an expensive affair.