I didn't bother trying to do an accurate count of all of the Service Host processes under the Windows Processes section, but there are many on my machine, with a couple of them having duplicate names (which is no surprise).
I believe there is now a trend toward direct enumeration rather than nesting under a single group. If your machine isn't misbehaving I wouldn't worry about it. Mine certainly hasn't been, and I upgraded on first day of availability so that I could try to anticipate what my clients might end up calling me about when Creators Update hits their machines.
Brian AKA Bri the Tech Guy (website in my user profile) - Windows 10 Home, 64-Bit, Version 1803, Build 17134
Memory is a crazy woman that hoards rags and throws away food.
~ Austin O'Malley