I've been in the IT world for some times now and i would just like to point out that there's multiple revisions of this Dell keyboard (which in my opinion is one of the best modern rubber dome you get in the office sphere) and they feel somewhat different.
Some of them are stiffer than others and some of them are more linear than others. My friends familly all puchased their home computers from Dell and kept those keyboards (thus, he has two mighty Dell Quietkeys) and when you get to try them you can easily find differences between them.
So yeah, it's very hard to determine with a picture. In my opinion the best you could do is test it yourself with weights and determine the average actuation force require, then try to get an idea of the three major "feedback" families in MX switches (Linear, Tactile and clicky) and determine which switch you want.
That way you will get an optimal feel with your board.
Have a wonderful day.