Perhaps the accounting amateurism will or will not reappear. So, to answer your question, I don't know.
However, what matters to me much more is that the company is making good money and - from that perspective - this is not a company of amateurs. If stock goes down because of 'amateurism' in their accounting/communication, I see it as an opportunity to buy more. If their accounting issues are behind them, the stock will probably not see these low valuations again.
Also, over time, I'm sure the company will learn from their mistakes.
In other words, for those who are patient, I feel it is just a matter of time.