I looked at this answer but it didn't solved my doubt:
Careful analysis of these questions suggests that everyone – regardless of the considerations above – should want to press the button, and presents practical strategies for actually doing so.
The subject of the last indepedent clause is "careful analysis of these questions", so it is the same subject of the first one. I don't think the comma before the "and" can be omitted. Shouldn't there be a "it" added after the "and"?