The last place I used to shop did something similar, swapping all of their shelves out for shorter ones to try and make it feel more open. They went bankrupt and liquidated a a few years later. The other store I mentioned is closing locations, so maybe it's one of those grasping-at-straws things that corporate does trying to find last-minute ways to make the numbers better before they have to cease operations.
Today I'm more and more annoyed by Lidl: a messy obstructive placement of product islands and displays everywhere while Aldi is a role model of order and structure.
I guess the reason why I don't switch supermarkets is simply habit.