You have a valid concern, but the evidence from other bike-share programs around the country is that bicycle fatalities go down, not up, after the bike-share program is put in place. In New York City, people were predicting mass slaughter of inexperienced bicyclists, but (at least as of 2014) after 23 million rides, there were no bike-share fatalities. And drivers in New York have anecdotally gotten much better at sharing the road with bikers than before the bike-share program was put in place.

http://www.reuters.com/article/us-usa-transportation-bikes-idUSKBN0GC10T20140812