Win10 patching strange logic

Win10 patching strange logic

Hi

I have some investigation and see very strange logic...

1. I see machines still needs replaced patch (it's not required if I run Windows Update): 
     2017-05 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB4023680)
     patch replaced by:
Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB4022715)

Information from MS site:

2. Question from same URL -
     There are  Delta Update for Windows 10 Version 1607 for x64-based Systems (KB4022715)
     It's 10 times less size then full patch
Why DC doesn't use it?

Dmitry
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