The real issue with QWACS is the idea that the EU government requires them to be added to web browsers running in the EU. It’s bad enough that France and Germany can issue those certificates but imagine Erdogan’s government pushing them out.
It’s not like any politician knows how the Internet works and that someone who knows better couldn’t rip those certificates out, but the tyranny of the default means that governments will have more control over EU citizens browsing. That’s not something likely to benefit anyone.