Could not get into the link, but I can guess: Companies value profits above all eles. IT is view as a Cost/Expense, so it takes away from profits.
TL;DR: Nobody is solving real problems for users, that's hard. So they're solving substitute problems that are easier for themselves.
The conceit is the "playing with themselves" metaphor: I.T. managers are building themselves dollhouses, and I.T. developers are building tech playgrounds, then just playing with themselves.
None of the above are listening to or delivering what users actually need.
// Interesting take, but author after meandering down a rant wasn't sure where to go with it so just sort of stopped writing mid-weeds.