To be honest, I think grey done well can look fantastic, elegant and warm. However the issue is some folks over do it, snd they do it cheaply so they use cold hard greys, and they put it everywhere, which has caused a lot of folks to go off it.
I’m sure I saw a post from mrs hinch awhile ago that she was looking at colour cards, so I think she’s looking at redecorating. I think her home has lovely elements but it’s a bit “next at home” for me. Too much the same.
As said, I’m not a fan of all white, or all grey, but I have many shades of green, interspersed with some funky wallpaper. I love it, and as long as my family do too, that’s all that matters.
I’ve a friend who loves colour, she’s got pea green, raspberry pink, bright blue rooms, it’s not for me, although I actually really like the raspberry room, we all have different tastes. I’ve another friend who paints everything mushroom and loves a dark brown sofa. All our homes are different, it’s about what you love, not what’s “fashionable”.