#deleteuber had pretty much gone away until Susan Fowler post pointed out real problems which led to all the changes at Uber.

From the article you pointed at:

By mid-February, #deleteuber had slowed to a trickle and Uber's top executives were exhausted. Kalanick and Michael booked their trip to Malibu for what was supposed to be a weekend of rest and recovery. Instead, Kalanick was reading Fowler's post.. [which] had already gone viral.