I don't think you need to, though if they want to do it, it's okay. There's a safety issue, because Opera limited the Search engines to 5 to prevent malware from hijacking searches.
It's just sarcastic and ironic, right? Because there is/are NO safety issue. That's a big usability issue!
Don't understand me wrong, I like the new Opera more than Chome/Chromium. And I think the new Opera is on the right way, but at the moment it's only my second browser. My first browser in mainly Firefox and somtimes the old Opera (12, with Presto engine).
I use the new Opera under ArchLinux.