local woolies shelves

this may be an isolated event however im at my local woolies probably 3 times a week for groceries.

today I noticed the shelves of BAL and A2 were both completely empty, in comparison the other brands seemed well stocked. I've never seen it before like this, could the daigou purchases be ramping up again, is anyone else noticing similar stock levels at their local supermarkets, or was this perhaps an isolated event???