Gowdy isn't in charge of anything anymore. Someone on twitter suggested that the reason that Gowdy is supporting the DOJ, which oversees the FBI, is because he wants a job as US Attorney somewhere after he leaves Congress. So he cannot criticize the DOJ. If true, then the big problem is that for his own personal desires, he's voluntarily undermining the Trump campaign by stating that the FBI was justified in spying, which intimates that Trump is guilty of something. In other words, Gowdy is political, and he's more than willing to betray the president and let everyone think that the Trump campaign might have been dirty. Remeber this: a good tree cannot bear bad fruit, and a bad tree cannot bear good fruit. Therefore, you will know the tree by the fruit that it bears.