I think you're giving Musk too much credit by classifying this as not "treating employees nicely" - he's mismanaging things in every way possible. The individual treatment of employees is such a small subset of it (e.g. Bezos also mistreats employees but seems much more grounded & competent than Musk).

My real curiosity from the whole affair is gauging the actual impact a CEO can have on a company's success / failure. No doubt Twitter's had issues as a product for a long time, long before Musk came along. Whatever direction the company goes next, will be be due to or despite Musk's input.