Can I turn off email lookup from friends plugin?

Can I please turn off the email lookup part of friends? I deal with very privacy and security minded individuals, some governed by HIPAA and just basic concern of someone randomly able to look up their profile by email address.
I love friends plugin but need to get rid of this security issue. I hate to not to be able to use it. Ideally, I'd want to look up the bio or any other info that users know is public, like ello does a little, but this ability to track people by email address I really need to deal with somehow and the best way I can think is a checkbox to allow people to include email address in friends lookup or not. Any advice for a different option nearly as good is greatly appreciated too. Thank you!