I somehow doubt 99% of the people having their images processed at a mini-lab will be overly critical of the processing. Since most hobbiests and working pro's are now all digital, that gives them 100% control over their images. The rest of us that really care will process our own film and scan or make prints ourselves. You have to admit; we are in the 1% or so.
Also this is nothing really new. Mini lab equipment has been capable of removing color casts and adjusting exposure for many years, often automaticly.