These days, realistically speaking, unless your primary source of internet service is dial-up or true wireless (that is, not DSL/Cable with WiFi), speed and/or data volume are seldom issues.
Microsoft, and all computer makers, slowly transition to delivery based upon what is the most commonly available method of transit and these days that's generally broadband with no data caps. I have DSL that's 4.5 Mbps upstream/0.9 Mbps downstream, which is hardly lightning fast by any broadband standard these days (including 4G true wireless) and these cumulative updates don't take that long to download. Given that you can now set active hours to block downloading for up to 12 hours per day, and that's soon to expand to 18 hours per day, you have a lot of control over making updates download when you're most likely to be away from the machine. I don't even know if most old-style Windows Updates that were on the large side (and I don't mean cumulative ones, either) would succeed downloading over dial-up these days.
There is no way that Microsoft, or any other company, can or should operate based upon the presumption that dial-up speeds are the norm anywhere or that slow DSL will not be sufficient for virtually any of the cumulative updates to download during the most restricted number of hours available.
You literally cannot please all of the people all of the time. Companies have to operate on the presumption that people buying new technology, or choosing to upgrade to an OS where the nature of updates was well publicized, have the data throughput to handle it. To suggest otherwise is simply not reasonable or we'd all be back in the days of DOS.
Windows, along with every other operating system I've dealt with at the PC level, has required less and less end-user intervention and effort to maintain as time has gone by. Most of that is the direct result of automatic updates. You really don't get one without the other and the market has already spoken, and loudly, about what it wants on that front. There is no "one size fits all" but there's plenty of latitude in the "one size fits the majority of our customers" range.
Edited by britechguy, 11 October 2016 - 05:01 PM.