This is true. It's going to be the same size as the old one.
The size is fine. The better quality will make a big difference. Any bigger and Peden will look like Pharrell wearing the giant Arby's hat.
Charlotte has a 1 level stadium of 15,000 seats with a video board 4x larger than the one in Peden Stadium. What is in Peden is a very small board by any measurement. If the plan is to put a larger one on top of Sook in 5 years and this is a stop gap it should be explained.