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.

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