I got idea of that agreement or the result of it.
But if it does not work automatically, use the standard translation feature of Google, it can't be worse than something built into a patent-search.
Is there a particular patent you are looking for? If it's a fairly new patent, then there's a good chance that this patent also exists in some European Patent version, and quite likely in English language form.
But yes, I do agree with your statement that US patents are much easier to search through and to look at than European patents, not just because of possibly language barriers. God forbid you want to read a Japanese patent ...
I'm not so sure of that. Japanese for one example uses English or German words for most chemical information. For example, they use Kali for Kalium (Potassium) and etc. But then, I am forgetting so much of my foreign language vocabulary that anything is difficult for me.