So after reading 21 pages of this I have some thoughts.
I know a lot of people who have MacBook Pros. Not one of them is a "Pro". They might on a crazy day have 3 tabs open in Safari and open a excel spreadsheet. I would be willing to bet that THEY represent the majority of the MacBook Pro customers. These people could not throttle a laptop if they knew what that was and were to try. Apple of course knows this and are happy to take their money.
I was also thinking as I was reading this thread that we all are asking I think, for the impossible. We want faster and faster. We want to be able to do more of whatever it is we do. If we want to edit video we want to increase our videos resolution-the number of pixels we are pushing- to HD, then to 4K and now 8K. It's that way in every task area. We want to add GPU's to push more pixels. But what do we want to give up for this to happen. NOTHING. We expect more and more and do not understand that the laws of physics are just that-laws. There really is no free lunch.
Lastly, I think if we consider the above, as users we need to consider our roll in this, Sure having a powerful system in a 4 pound case that you can carry around is super convenient. Being able to carry it to where you are working is an advantage. But computer makers produce big large workstations for a reason. I have worked on Dell and HP workstations, where one of the heat sinks weighted more than 4 pounds. The top of the line HP workstation is liquid cooled and still has several fans. The cooling solution in that system weighs more than 4 pounds. Maybe the problem is not the system. Maybe it is that we have decided that for the advantages we want, we will use a system that was not really designed to do a task that we want it to do. I don't think the word "Pro" in Apple speak means what many think it means. In Apple's world in 2018, "Pro" means the top of the line. Not for Professionals. If I had to fault them, it would not be on these laptops. It would be that for their "Pro" customers that they don't truly offer ANY product anymore. Reasons for that exist too. But it is up to us to understand what we need to do with our systems and to pick the correct system for that job. That is not Apple's job-it is ours.
You are blaming the, for lack of another word, victim. Worst, you are falsely saying the victim asked for it. With the victim being professionals, I’d challenge you to find a thread on this or any Apple centric site where pros asked for thinner MacBook Pros. If anything, it’s been the opposite, with everyone begging Apple to add space. If Apple announced they were bringing back the 17” MBP, this forum would weep for joy.
Just as Apple users (and competition) forced Apple to finally give us larger phones, maybe this (if the excessive throttling is true) will make them slow down on their thinness obsession.