Yeah, but do you want to bet that during the management call and the subsequent engineering call that made this decision, the main topic of discussion was the direct financial benefit from improved tracking?
We'll never know, but if we could find out, say 1 year from now, I'd bet 100:1 that was the main driver.
The 2 things aren't mutually exclusive. Because it reduces complexity you will likely see a financial benefit from the cost of the engineering team alone. Having managed an infrastructure with a ton of subdomains I can say that it's almost certainly in their best interest to standardize the domain across all tools at least for engineering. Your data is just an added bonus :)
We'll never know, but if we could find out, say 1 year from now, I'd bet 100:1 that was the main driver.