The engineering decisions have nothing to do with making a car less workable for the consumer. It's all down to consumers wanting more car with more efficiency (Regulators on the efficiency front as well) and getting that requires ever more complex systems in increasingly compact packages. You think I don't curse at some of the **** I have to do to change a simple filter on some cars.. Sure I benefit from the increased complexity, but it's you the consumer who wants bluetooth, nav, awd, heated this, cooled that... don't like it, buy a pinto
On the second part, no offense I hope, but if you're upset at good a tech getting a job done faster than the book time, why not go find a less skilled tech who needs the entire allotted time to complete the work? Would that make you feel better?