Sephora employees

I just had this interaction at a Sephora. I went to go and try and get samples for some concealers.

A lady told me they can’t do samples with products that they have to scrape the applicator for.

??? I’ve seen Sephora employees use a new product (a new tester I’m assuming?) from storage to get samples before.

I sample a LOT of things before I buy them and I’ve literally never had this happen before. Is this a thing?