As usual, you are questioning a plan that has worked better over time than any 1500M runner in the U.S. lately other than Centrowitz, (maybe Hocker as well, I would say Engels, but God knows what has happened there) . The idea was/is.
Do a Euro trip....Kessler has to do one of these sooner or later in his development. Race guys , even with some pacing, and get better tactically. Learn to get around on your own in a strange land.
I told people almost 6 months ago, that Kessler caught lightening in a bottle one day, and that he wasn't a 3:34 guy , he ran 3:34 one day, that's different and people mocked me and said "No, that's what he is" I said," No ,he is not he was much more like a 3:38/39 type last year, who caught the wagon train just right one time". Now he has run 4 of the top 5 U20 1500 times in the U.S. of ALL time and 5 of the top 11 run by a total of three other greats. He is going to be fine..trust me on this one thing...Beadlescomb is probably on fumes, but that 1500, even though his mile converts down much faster is a PR by a second. So, he is hanging in there.
You could argue all you want, all you want, and I respect the banter..but Ron knows exactly what he is doing,the travel may bog a 19 year old down a bit as a first timer..but the experience, of "getting around" in Europe , being in a way different situation cannot be coached..it has to be experienced.