1999 me would probably look at how many flights I take and how much I pay in 2019 and say "looks like a good deal." People always forget that bit when they trot out "Greed and a rip off".
Flying now is dirt cheap compared to 1999, so the money has to come from somewhere. If not drop off charges and charging for seats, what would you prefer - higher fares? Any other suggestions, as the public have already voted with their feet on that one.