You'd have hated mine!
I doubt it, if I liked you I'd have liked your wedding, as long as you were genuinely happy. But yeah, it's fair to say that the detail is what makes a huge difference in the general ambience of an event. You don't notice it or pick it apart while you're enjoying it (unless you've been ruined by the job!), but small things can make a huge difference if you've got something specific in mind.
Chair covers were the thing that stuck in my mind. Totally unnecessary, of course, and I didn't bother with them at my wedding - not worth the extra expense to us. But I can't deny they did make a room look very different, and in some cases they were necessary if the client wanted a particular aesthetic. (They weren't always weddings, in fact they were mostly business conferences.)
Who has the time or the energy to muck about with colour palettes and stressing about two different shades of periwinkle blue?
They rarely got into that level of detail (though some did!). But in the case of weddings, most people did want the bridal party's clothing all to complement each other and it really wasn't a terrible faff. In my case, my bridesmaids chose the colours they wanted off a colour wheel and the style they liked (we had the dresses made), and then my husband took the colour wheel when the men went to select suits.
Lots of people wouldn't be bothered by that level of detail, of course, but I wanted us to look like individuals in a cohesive group. It wasn't a major faff - in fact the men actually liked knowing what they were looking for and said it made the process quicker and easier. They were in and out in under an hour.