Yes, the Liverpool case changed everything. It's a job that carries responsibility. However, all railway staff has been given more and more aids over the years to prevent accidents. The Driver's role is very sanitised compared to what it was and many risks have been reduced to such an extent they can carry out DOO roles safely (in the RSSB, ORR opinion). So much so there's still probably more chance of a driver being prosecuted driving a road vehicle, even if they drive a train for a living. I see no problem if the drivers get extra pay and guard redundancy is handled by natural wastage. You can't expect nothing to change for the next 50 years.
You have never driven a train so how on earth can you make sweeping statements like that? Please give an example of how the drivers role has been "sanitised"?