Do this with 20 accounts and see what the average result is. As @damian24 said, trying something out with one account is not even close to being sufficient to claim that something is or isn’t true.
I’ve been testing 10 accounts with and 10 accounts without FBE activity. I’ve found the accounts with FBE activity (as suggested by OP) to have much fewer issues. Less PVs and EVs as well as less likely to be banned. Haven’t been testing for long enough though to say conclusively. Might update in a few weeks with more results. Would like to add more accounts to the test as well.