It's kind of always been that way to varying degrees. In the 70's/80's, changing the Porsche 911 spark plugs required dropping the engine.
Also, in addition to planned obsolescence and repair hostility is Design for Manufacturing (DfM) that doesn't care about maintainability, safety, comfort, or durability, only lowest cost to shove things together on an assembly line. This is why there are some cars that require removing the wheel well to change the oil filter and other that have things completely out-of-order or require absurd tools to service. My grandfather was a 30 year Chrysler dealer mechanic who had a dozen or so custom tools for very specific purposes.
Source: Dad had an A/C & electrical mechanic shop next to a Porsche specialist shop.
Also, in addition to planned obsolescence and repair hostility is Design for Manufacturing (DfM) that doesn't care about maintainability, safety, comfort, or durability, only lowest cost to shove things together on an assembly line. This is why there are some cars that require removing the wheel well to change the oil filter and other that have things completely out-of-order or require absurd tools to service. My grandfather was a 30 year Chrysler dealer mechanic who had a dozen or so custom tools for very specific purposes.
Source: Dad had an A/C & electrical mechanic shop next to a Porsche specialist shop.