Interesting. Mine is the first design, as is every EM5900 Ive owned (so far, 4).
There was a redesign after the first generation where the group handles were changed (spouts slightly further apart, spring moved highre) and the single basket was changed to a single + pod compatible basket.
Im very happy with the coffee I produce but itd be interesting to see if youd get a more consistent/longer pour from having holes over the entire puck. The water around the edge certainly gets wet, but doesnt have the indents obviously.