We don't know if the SEC has commented on the earlier filings or not; its letters won't be posted at Edgar until the S-1 is deemed effective or withdrawn.
Sometimes when an issuer amends a registration statement--or, for that matter, any other SEC filings--at the beginning, it briefly states the reason for the amendment. That was not done in this case. So the Corp Fin reviewer (s) will look at the whole thing and respond. They could deem the filing effective, which would mean the company could begin selling its offering, or they could ask questions that would require the filing of a new amendment.
That could continue. Some companies end up filing as many as eight amendments. Maybe more, over a period of a year or 18 months.