As back then as now. Fuel is just an expense as any other expense. One's prices should cover the cost of one's expenses.
To raise one's prices and add a fuel surcharge is wrong.
As a business owner I do not want to raise prices just because I feel like it. Though if I need to raise my rates I will have no problem telling my customers that there will be a price increase.
I will not hide an increase as a fuel surcharge. I have yet to see any LCO's raise and lower their fuel surcharge as fuel prices go up and down.
A surcharge does not follow fuel prices is not a surcharge. Just a person hiding a permanent price hike.