You have a good understanding of the principles, but I don't agree about 'reframing' emotions even though you say you were helped by doing so while you were also using the EC Process. Reframing, or seeing things differently, is what CBT relies upon, which I consider a completely ignorant travesty that has evolved psychology backwards, in line with the current backward evolution of society in general as technology advances. Reframing may spontaneously occur after feelings have been successfully integrated, but it is not part of the EC protocol. The whole thrust of the EC Process is to go beyond the mind and be present with the energetic experience of the feelings.
What I'm seeing here is that you may have been processing regret, but this is only a first-level emotion, and not a core feeling. (Similar to guilt and shame being first-level emotions, but the core feelings behind need to be addressed.) You have not indicated that you have been working with a core feeling, which would be something like insignificance, worthlessness, failure, not being good enough, etc., relating to the solar plexus Significance center. The core feeling is part of a dualistic syndrome such as accomplishment/insignificance. Striving for the positive will never bring the suppressed negative into balance, hence, the need for EC work.
Regarding your other question, I think you have a point, but once awareness realizes that it may be ok to live with some degree of confusion, it becomes a personal judgment call about when to allow confusion or seek to understand.