UberX was priced appropriately for the market, but Uber wanted a larger cut of revenue. (Say average ride was $12, Uber gets $2.40.)
In January, Uber announced a 20% decrease [1] in UberX prices. (Continuing hypothetical, average price could be $9.60, and Uber gets $1.92)
This week, Uber adds the $1 safety fee, of which drivers get none. Now, continuing my hypothetical averages, the average ride costs a consumer $10.60 (less than before), and Uber takes $2.92 (more than before), and the driver is taking the loss.
Crafty, I guess.
[1][edit: here's the 20% price drop in January I mention above: http://techcrunch.com/2014/01/09/big-uberx-price-cuts/ ]