In short, no those numbers do not look "right" however that's just from observation. There is no "right" or "wrong" as I'm sure you know if you're familiar with tuning,
I, as well as many other tuners like a nice smooth timing curve. Diablo does not offer 3d smoothing like Hptuners does, so you have to manually blend the tables.
In reality, those "odd" looking numbers might or might not matter as you might never be in a given aircharge vs rpm situation to ever hit those numbers.
I would however have some serious concerns of the 21* at WOT in the lower right hand area of the graph