Just before the .com bust a company I worked for decided to remove the option for employees to just dump their 401k contributions into company stock, and removed the option to direct a massive % of their paycheck into the company stock purchase plan. (I believe some of these limits became law later on but at the time it was legal)
Some folks got really upset by that. The argument at that time was "we don't to be a part of employees suddenly being broke if things go south".
About a year later they were right, things went south. Our stock did sorta well in the long term (not great short term of course), but IMO it was a good choice.