The reason Merkel was there, I think. Potus speech very good and strong with praise of the traditional imagery of Free French, Brits and other allies fighting for nation state sovereignty. UK trip overall very good for POTUS's image, which hurts EU.
Even Pelosi was smart enough to bullshit her way past a got ya' quote by saying she doesn't criticize on foreign soil. POTUS Speech too good and inclusive to risk a PR stunt quote.
Macron and Merkel just double down, though. regardless.