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 (my website address is in my profile) Windows 10 Home, 64-bit, Version 1709, Build 16299
Here is a test to find out whether your mission in life is complete. If you’re alive, it isn’t.
~ Lauren Bacall