Alright, so for the action sequence mechanic... I'll be honest, I didn't really like it. The question you should be asking is, 'how much work would it be to get rid of it, and can my time be better spent?' as well as, 'will getting rid of it later be more, less, or the same amount of work?'
Your game is fairly new, so I would worry about getting more content out right now and optimize the content once you get more reviews, as opposed to basing it off of one persons opinion. That said, once more, I didn't really like the action sequence mechanic, so if this were a vote, you know where my vote lies.
As to the answers to my questions... I only saw this after I finished my third episode, so I didn't incorporate this into my let's play, but thanks for clearing it up anyway.
I really think you should copy and paste the answers as a comment on the video itself so that it will help anyone looking for a walk through of your game. My video's show up directly under the trailer when you look up Luna Sanctus! This means that if anyone is looking for answers to questions about your game, I am the first one they will see.
As a last note, can you alert me when you update the game? I'll be sure to continue this let's play and, assuming it takes you a couple of months to update, I should have more subscribers, better equipment. and be in a overall better position to promote the game.