I think it was to encourage players to be instinctual and not overly robotic who just performed set moves in set parts of the field etc. meaning he was trying the de-program the Eddie out of us.
Ironically, according to Squidge Rugby, Eddie for the past few years, has apparently been working on a team that can change it's shape rapidly and instinctively when it's necessary... he's starting to implement unstructured attack... "playing what's in front of you"...
I guess the irony here is the contrast between Eddie's approach in previous world cup cycles... as back in 2018, Jones was holding back a very formal and rigid structured game-plan. It's entirely possible for teams to train that in secret and then just deploy it at a given moment. This time it looks like what Jones is holding back is something much more unstructured, free-flowing and devolved which requires players to think on their feet and make decisions for themselves.
In 2019, England had beautiful attacking strike plays but they came from a very rigid and disciplined structure which saw the team always do the same kind of thing in the same areas of the pitch. In particular a big part of it was kicking into the right hand corner but not into touch, forcing the covering winger to kick off their wrong foot for a net yardage gain and then run a rehearsed first phase strike play off a lineout around the 10 metre line. And more generally lovely as some of England's attacking moves were they were a bit like Japan's: built up out of very tightly scripted and choreographed individual building blocks so the whole looks fluid but is made up out of a collection of very rigid parts.
In contrast, according to Squidge's analysis, is that what Eddie is building towards for 2023 is something more like 2000's New Zealand style "Total Rugby", or essentially scaled up Seven's style, where there might be set-plays (TBC) but there are no set roles, and everyone is expected to be able to fill in for everyone else. That requires the players on field to make decisions rapidly about who is going to perform what role, it's not like in 2019, where everyone can just snap into the positions they had in training.