To call the response "seemingly-exaggerated" is an understatement. Frankly, I wonder if Mr. Benioff has even read the bill that Gov. Pence signed today, or whether he's relying on the rhetoric of those who oppose it, who claim it will inevitably lead to discrimination. What the bill actually says is that the state government can't (with some exceptions) enact a law that curtails religious freedom.
In the 20 or so other states that have very similar laws model after the 1993 federal Religious Freedom Act, the courts have ruled in the cases that have been brought forward that it isn't an excuse by the private sector to discriminate. (One assumes that no Salesforce personnel are allowed to travel to those states, either...)
You can love your neighbor as you love yourself, and still not condone or participate in or approve of activities that contradict your faith, just as on a purely secular level you might like an individual but find some of their behavior distasteful.