I’ve been paying California sales taxes on Amazon stuff for quite awhile.
I think the deal was that states could charge sales tax if the business from which you purchase has locations in said sate. There are Amazon distribution centers in Texas, so I have had to pay sales tax on my Amazon purchases for quite some time. The same is true of online purchases from Walmart, Macey's, JC Penney, et al. Now it appears they can charge the tax even if the business does not have locations in your state.