Explanation

Box 1:
The C2R (click-to-run) version of Microsoft Visio only will be uninstalled from the computers.
To remove the MSI version of Microsoft Visio, you would need to specify the RemoveMSI parameter. The RemoveMSI parameter is not configured in the configuration file in this question. Therefore, only the C2R version will be installed.
Box 2:
If the Office share on Server1 is missing the Japanese language pack, Office 365 ProPlus will be installed in English only.
In the configuration file, English is the first in the list above Japanese. Therefore, English is the primary language and the installation will continue in English only.
Reference:
https://docs.microsoft.com/en-us/deployoffice/configuration-options-for-the-office-2016-deployment-tool