I've never played on a console, so I can't directly make any comparisons but up until a year or so ago I had an ancient pc with a clapped out graphics card. In my experience, you just had to go easy with hair colours, the lighter colours (whites and light blondes) always looked awful! blotchy and plastic whereas darker shades looked absolutely fine. It seems to me that whoever created that char in the picture deliberately chose the worst hair colour to use as an example to bring about a reaction. I haven't seen any but are there old gen or low setting pc pictures of Inquisitors with mid-darker hair colours? Your Warden is lovely Panda but she has black hair, it would be interesting to see her with white or blonde, I don't think she would look anything like as good as she does.
I have a feeling that at worst, those of us with lower specs, be it on console or pc may feel restricted in the actual shade of hair colour we use in order for it to look better, it's disappointing for sure but I honestly don't think it's going to be that bad. (unless you really want to play with white hair, in which case
)