Runtime error 429 when connecting to SL2015 CU2 from 32bit Excel

I am running into this issue in SL 2015 CU2  that was apparently fixed in SL 2015 CU1.  It happens on the "Set sivTB = New SIVToolbar" line of code in the Excel Macro.

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Can MS confirm that is Hot Fix made it into SL 2015 CU2 and beyond?  Below is the link for the SL 2015 CU1 Hot Fix.

https://support.microsoft.com/en-us/help/3091285/you-receive-a-run-time-error-429-when-you-try-to-connect-to-microsoft