interesting take on this. I ride them standard, but perhaps should try them the other way for a while just to see.
The only issue is that its on an old bike with a quill stem, so its a royal pain in the keester to remove all the bar tape on one side to take the bars out.
I still may do this sometime, as I have been thinking of changing the bar tape to very simple double wrapped cork type stuff that I put on my wifes trekking bars. The more textured stuff I put on mine is not as comfy as the regular stuff on the other bike.

I also put ergo grips on my bike, and am ready to remove them to see how it is.
I have found that I dont like the narrow, inward position of the grips, this is due to the grips not being able physically to get all the way to the edge of the bars due to the curve.
Because of this, even with trimming my grips down, the grip hand position is still too narrow for my liking, so without grips, you can position your brake and shifter levers probably a couple of inches further out than in your photo, which gives you already a wider stance when with fingers on brake levers.

in the end, like me, you'll have to try out diff variations. The big plus is that you have front bolt stems, so its much easier to muck around and try stuff.

I do think its worth playing with diff versions, and commuting with one regularly for a while, then switching.

I ride dropbar bikes, mtb risers with ergo grips and this trekking bar bike, and I do have to say that so far the trekking bars are the least comfortable, and most likely its simply a question of some fine tuning with either the bar tape, removing the grips and having a smoother, softer bar tape surface, and or trying the flip and seeing how it is.

I really have noticed being uncomfortable with the very slight angle outwards of my grips position, so if I can get that area of the bars to angle inwards a bit, like my mtb risers, I think it would help (along with the bar tape and wider hand stance also)

have fun trying slight or not so slight variations.

also---you'll see that the angle of the bars is personal as well, as the pressure put on your hands when on the sides is diff depending on the angle.
I personally find only a slight upwards angle to work best, to get even pressure on my palms, but again, personal and small differences make all the difference with comfort, like with most bike stuff, but especially with bars, no matter the type.