Ever heard of rationalization?
It's when a company caves to standardizing design and marketing trends which have become the industry standard. Consolidation of brands, and designs.
Also, ask the share holders. Ever been to a meeting, or voted by proxy for a policy decision?
I think maybe they held out with their long proven design as long as they could.
Maybe the investors want a better dividend, and building a leaner, lighter, cheaper to make machine seemed to be the answer.
The first I learned of rationalizing was about the British auto industry.
By 1980, Austin, Morris, MG, Jaguar, were all owned by British Leyland. Soon, they were all sharing parts. By 1989, Ford owned Jaguar, and the others were gone.
The Chinese have revived the names MG, and Rover, which is owned by Rowe.
Engineers do not control the purse strings. Dumb people do. If the engineer needs a job, they do what the dumb people want done.