If being a CFO was that simple, they wouldn't get paid the big bucks.
It will take a new pilot thousands of hours of flying to understand the controls of a new plane. Accounting systems are also complex. The P&L and balance sheet are outputs of a spaghetti of inputs which the CFO has to master. There are many other systems to master beyond reporting debits and credits. Judgements about complex systems are necessarily difficult. It takes time.
Your explanation isn't necessarily wrong. But I think you are depending too much on an omission for which several explanations are possible to derive the conclusion that you wish to derive.
Perhaps for the company to have sold shares on April 15 in order to take advantage of heavy volume that day would have caused panic selling among new buyers looking only at current headlines and not the financials of Wave. Who knows? Surly management thought about selling shares while volume was off the charts. Your question is brilliant. Hope it gets answered.