Yeah there is no issue that she planned for it. No one died (even peace droid has not gone the way of Annie´s drone) and the room was wrecked but simple knowledge based on what was known about Evie could extrapolate the correct room and heroes for this fight. They needed to frustrate, avoid, then pacify her while buying as much power as possible.
"You mean you meant for all the destruction and injured heroes?"
"Just as planned!"
"Really?"
"Just. As. Planned!"