You have to give the runners in Paris some credit for double figure runners in 3:32 or better, including several 3:30 and low 3:31s, in a race without Cheruiyot to bring them below 2:50 at 1200m in a non-Monaco race. Usually, when they aren't running in Monaco and the best guy isn't there on the DL, the winning time is more like 3:32-33. It is not a good bet to say that Filip couldn't run two one-hundredths of a second faster tapered in Brussels or Zurich with perfect conditions and Tim running a 3:28 or 3:29, as I expect him to do, let alone to say that a fresh Jakob will not get another .17 this year or any year.
Next year, I fully expect a 3:28 from him. He's 18 and he's not looking close to cooked. Nor should he because Gjert's training does not have that effect. Sometimes they get injured but even Henrik after years of injuries, and seven years after a 5th place at the London Olympics, has run a 7:36 NR this year.
As for Jager, he has not been in his Paris form since then, and Jerry just does not learn from experience to race his athletes more often, as if runners can only run well at a championships and nowhere else in a calendar year. Yet, Jager has run 8 flat and 8:01 in the years since that race. And if he is healthy he might still do it if he gets another chance like that year where Jerry is forced to let him race shortly before his DL attempt. That year he had just gone through two tough steeples at U.S. champs in very hot weather the previous weekend. He then ran in Paris within a week of those races and was at his all-time best. Health and Jerry are the only things standing in the way of 7:58 right now.