Disclaimer: I work for a Ford competitor, but have no first-hand knowledge of this deal. I'm thinking about the concept of 'frenemies' and jumping to some unsupported conclusions. In tech you may have a turnaround of weeks or months for some products. In automotive, you may plan a new vehicle for 5 years and then in some cases produce it for up to 10 years after that, and then continue to support that vehicle for 10…
I don't know any serious business that embraces 'breaking things' when a bit more effort and time ensures that nothing gets broken.
Breaking things only makes sense when the stuff you built is small enough to not matter much (it's a tradeoff, etc)