Yekke, why do you say it wasn’t carried out? It says Vayachatz. That’s not a plan, that’s action. The problem with the Vort Baal Habooze quotes is that the Pasuk repeats Vayachatz after the incident with the Malach.
If you look you should notice that when they approached Esav to bow to him first it says Vatigashna Hashfachos, then it says, Vatigash Gam Leah. This is because they were not together. First the first group bowed, then the next group also approached and bowed.
This might be a Kasha on the Brisker Rav, too. Why did he continue to take caution if he already won? Perhaps, though, he was still afraid of what the Gid Hanashe injury, that the Malach scored, could represent. It turns out, as Chazal say, it was in the future.