I haven't made any purchase recently so maybe that's their way to subsidize the cost of various laws put in place in the EU recently (tax and shipping). But maybe it's also because you buy from the US?

It doesn't matter much anyway; I stopped buying there because I am a bit tired of too random quality that doesn't make the "savings" really worth it. For example, I bought a connected outlet that was half the price of ones from an EU brand but the app is pretty bad (data logging and display is terrible) and build quality worse. I also bought various RCA cable for an old amplifier and all of them were producing noise, I got a good one from Amazon (made in Germany) and no problem.