I appreciate the one-ISO-per-CU-approach very much. For any serious organization - especially those running on-prem Exchange anyway, means having a significant amount of users and thus emails and traffic daily - both, download and internal network distribution
(LAN/WAN) even across multiple locations in multiple countries around the globe, of just *a few gigabytes around 4 times a year* can't be any issue, at all. Seriously, stop whining here and focus on resolving those network connection issues (even if its your
"home lab").
The majority of IT staff dislikes dealing with multiple sources for a reason: over time growing variations for a number of applications (not only Exchange) - exe files for some patches, msi files for other updates, yet again other files for full installations
- this is much more annoying and a mess, not only for customers but also for the software vendor (downloads, documentation, support..).