The status icons are harder to see in Workstation 15 as compared to Workstation 14. I have a number of images where the network adapter is disabled and I can no longer tell at a glance whether or not the adapter is enabled. There is a green dot now instead of a color change but the dot is too tiny. Here's a pic. Depending on your screen size and pixel density it may be easy to see. Like in my browser as I'm typing this the images are scaled a little so it's easier to see.
I prefer the old icons simply because it was easier to see when they changed state with small icons. Again this will depend on your screen size and pixels. If I had to guess my icons probably show at 1/8th of an inch.
I think this is another aspect of the 'flatification' of the whole UI style as it's redone in the Windows 10 style.
I think this is a step backwards in clarity and usability all around.