Yeah, chain of command 101. That's likely why the throttling was implemented, as I assume they reported up the chain that iPhones were shutting down under load.
But how would reporting the side effect of that throttling help, as they would be reporting it up the chain to the people that created that "fix"? That is like the movie plot trope where you tell your boss you think there is a spy in the company, only for it to turn out that they are the spy.
Again, if the line workers knew, boo to them, but that is a big assumption. Most low level workers don't (get paid enough to) want to take a stand to rock the boat, but they also don't like it when senior management messes things up and leaves them dealing with the public, so I tend to give them the benefit of the doubt rather than default them as the fall guy.
In my case, when I took it in to be looked at they didn't try to upsell me, but this whole mess had already made the news, so I guess someone could just assume they became less evil after. The employee looked at the diagnostics, then showed me the results and said "that's weird", as my phone would occasionally show a drop from 70 or 80% battery to 10 or 20% in the logs. She said they could try replacing the battery to see if it would help, but the "$29 deal" was over. I wasn't impressed by the price, but tried it and it worked great for a bit over a year. The employee was fine, the process was okay, but I was annoyed that I didn't take it in a few months earlier when the "deal" was on because they had added the Battery Health indicator and it showed 92%. I was home at the time and wasn't using the phone much, and let the "Battery Health = 92%" lull me into thinking I just hadn't charged when the battery life sometimes seemed a bit shorter than I would expect. It wasn't until it died while I was using it one time after I had just charged it that I realized there was actually a problem. So, yeah, those batteries were hot garbage and Apple should have recalled them. But at least they didn't burst into flames, so I guess they were just garbage.