Well reading the letter at face value: it seems the intent is based on the investor asserting that the current owners are delaying games to keep the share price low in order to buy up a greater percentage of the company (said owners apparently only have a 25% stake). Therefore, they're actively preventing other investors investments from growing in order to grow their share of the company on the cheap—very much against the duty of a publicly traded company.
The title makes this seem more ridiculous than it potentially is. Though it could also just be hot air from the investor