One of the points was that it was designed to stop you from “opening an app” based on certain criteria. The only way you can do that is with MDM on iOS.
I am confused by your use of quotation marks. That phrase is not contained in the article. You might be referring to this sentence?
> In addition to tracking the time spent on social media apps, we needed to implement the feature to block those apps when the user reached the configured time limit.
But "block those apps" is a perfectly sensible description of "blocking tcp certain connections at VPN level" and thus a very different statement to "stop you from opening an app".
Please actually check what was said before you pretend to quote someone.
> In addition to tracking the time spent on social media apps, we needed to implement the feature to block those apps when the user reached the configured time limit.
But "block those apps" is a perfectly sensible description of "blocking tcp certain connections at VPN level" and thus a very different statement to "stop you from opening an app".
Please actually check what was said before you pretend to quote someone.