Hi.
Sorry to jump in, but this is far from being an improvement. It is a bug. In any spreadsheet you insert a row/column, the expected behavior is to automatically adjust every Formulas for the new row/column range. Otherwise, the control is completely useless.
By the way, the EJ2 Spreadsheet is even worse than the EJ1. Is it really recommended to use this control in a production environment?
Best.
Ivan