This means that users are de-factor forced to click "consent to all". I'm not even sure if that's legal.
Now, this was not some obscure small website, but the official Java documentation on docs.oracle.com! They use some third-party service for that - I just tried again, and though it worked this time, it still took 30+ seconds to submit my settings. I have a very hard time to believe this has technical reasons. Either this was made slow on purpose, or built by a bunch of morons.
/rant