It is a problem that affected both sides. The creative side could run wild and create settings that sold next to nothing and come up with products where the manufacturing cost exceeded the sales price.
The business side failed at both giving directions about what to create and about reigning in the creative freedom when it conflicted with basic economics and market research (because the business side sucked at both too).
The downfall of TSR can be blamed on the business side, but it is an example of an unchecked creative side running free, without the direction and checks and bounds the business side should give / impose. So it is a good example for prioritizing the design side over the business side and failing as a consequence of that.
sure, short term thinking is a big problem in corporate America. It is much easier to increase profit by cutting investing in the future of the company (research for new products, etc) than to actually grow the business, and in 5-10 years when it comes back to haunt you, that CEO has left with a huge bonus from that decision
I see this more as measuring the wrong thing. If the CEO bonus were tied to the share price in 10 years instead of the one in the next quarter, such stupid short term decisions would be far less frequent, which is why family owned businesses make them at much lower rates