Where is the first DFO to so order such changes? Those who want their guys to be the best & safest 'pilots'.
Training costs money as does employing high calibre pilots. This increases outgoings and makes fares more expensive. Show me a DFO who wants to end up losing pilots and paying increased wages to attract talent and spending even more money on lengthy training.
With modern technology an airline pilot today doesn't have to be as skilled as a B707 pilot needed to be in the 1960s. This is why terms and conditions have been on a downward slide for decades.
Automation has made flying safer, most of the time it works. Regular practice in a simulator is needed to maintain the basic skills for when it doesn't.
Management would rather have the automatics used and have fewer incidents occurr then have to deal with the inevitable incidents which will happen when pilots practice manual flying.
We have had accidents because pilots couldn't manage without the automatics and there will be accidents which wouldn't have occurred if pilots had used the automation instead of flying manually.