And Wil That Lead To The Sucide Pact Learning The Universal Lesson?

That it's the doing of the incredibly stupid thing. Which makes the humilating climbdown inevitable.

http://www.news.cn/english/2021-10/31/c_1310280553.htm 

Or does it just highlight the EU's need to learn that other lesson.

That being unable to keep up with a situation. Most certainly doesn't qualify you to be in charge of that situation.