Sounds to me like WG had this grand utopian vision- superheavies all over the place, tight corridors to funnel them into close combat, bottom tiers in total awe of all this armor they simply can't pen (desperately reaching for dad's credit card so they can free exp superheavies of their own), gold being loaded left and right, and every single shot bouncing. Every time a round is fired, cue cash register sound effect. And the players, they love it! Look at muh armuh! I am steel! I am invincible!
Just a minor hiccup along the way that those damn pesky players actually want to pen the enemy sooner or later. And they don't like being bottom tier? Heresy!
The one thing that's so odd in all this isn't the disconnect between WG's desires and ours, but rather that they have been in such utter disbelief that we didn't like 3/5/7. They were so sure that it was going to be a success, that being bottom tier was still fun, that taking away premium MM would be easy, et cetera. They just can't handle the idea that 3/5/7 is cancer, being bottom tier 80% of the time sucks, and that at the end of the day, potato and unicum alike want to put rounds on target and see positive damage numbers without breaking the bank.