Please share why it made sense to not record the interviews for HRC and couple that with a 'revision' of a report to eliminate legal actionable language.
Because, for the history of the FBI it has been their decided policy NOT to record interviews. One reason for this is that it was determined that what they considered to be useful interrogation techniques could appear to be unfair and prejudicial if presented to a jury. Now, you can reasonably argue that it's bad policy that is unfriendly to potential defendants, but that was the policy.
Under AG Holder there was a very contentious review of this policy, and new guidelines were issued circa 2014 that the Bureau would express a preference for videotaped interviews of subjects in custody.
So, the takeaway is that it's never been FBI policy to record interviews, but guidelines were issued to express a preference for recordings for subjects in custody. So HRC not being recorded was not in violation of policy, and, it's certainly worth noting that while she was interviewed by the FBI in the course of investigation, she did so voluntarily and not as a suspect in custody, so the new guidance didn't even apply.
As for the language in the memo, it makes sense that if it were determined that there was no chargeable action, the language of the statement would reflect that. I'm not sure why this is so hard to understand.
So, you've presented 3 items: the Mills/Abedin interviews, the lack of recording of the HRC interview, and the revision of the language in Comey's memo.
In the first case, no competent prosecutor would try to wring a charge out of the emails cited in the Daily Caller article you posted. The appearance of the word "server" in an years-old email chain with no material connection is not going to cut it. The second I've addressed in this post. The third I've addressed previously.
If you want to continue to take the Sean Hannity/Daily Caller line on this, that's up to you. I've told you, with specificity, why I think you're wrong, and your response has been "I'm right because these issues that you've addressed have never been addressed." If those explanations don't satisfy you? Ok, that's your right. But don't pretend that entirely plausible answers to your questions don't exist.