They did during FM LIve once. However in reverse, announcing an ME update had commenced, when actually, naught has transpired. This was supposedly done on purpose to test what would happen. And exactly the same that would happen on every update announced, happened.
This thread makes a strong case why learning how to play the game can be pretty handy. The core logics rewarded have never once changed in like more than half a decade, perhaps longer. However, as downloads aim to game the engine or the AI's lack of tactical decision making (such as it never spotting when it's getting overloaded in a certain area, and only fielding players there by chance//edited preferred formation), that's the fallout. Every patch can fix those holes, every iteration may improve AI some.
What is alarming to me that, as demonstrated here, even quite a few creators aren't aware what makes them get results, apparently even in more basic terms, like: where do the assists and goals come from, and why did a possibly fix to a marking/positioning bug now stop this from happening as frequently?
https://en.wikipedia.org/wiki/Infinite_monkey_theorem There's also a strong connection between "plug&play" downloads and bad myth spreading, in fact, you see some of it spread right by the creators: AI would crack your tactics, currently one of the more important guys gives totally wrong advice for team talks, including always given praise when winning at full time, and never giving praise at half time (which is totally contextionally). However, as his tactics/positioning games the ME, neither player quality (and transfer markets/development) nor any other stuff won't matter much anyhow, drawing the majority of modules redundant. Only with such tactics the game truly is 100% about tactics, so much that you can load it up and hit continue and be successful with the most average of sides, and whilst that is a viable play-style (though a bit boring in my book), the aforementioned connection clearly exists.