"Stock for free" doesn't equate since it's stock-based compensation. To some degree you expect it to retain its value and generally go up. Some companies might create an expectation of a greater appreciation even. But it's not a "oh I get paid X for my salary and then so much more for free." If you get stock at any company you compare those offers and the expected outcomes financially. There is a reason salary+stock is considered "total compensation."
And in terms of it "not mattering that it went down." Of course that matters. Companies do things to keep comp consistent but if the stock does go down quarter over quarter people see that as a personal loss and a possible sinking ship. They can work somewhere else that is more stable or eve n has a positive trajectory. I have know people who had a family to think of and moved to a Apple since it's much more reliable.
