This is not true. The RSU grants converted to cash but maintained the same vesting payment schedule; so effectively the same as RSUs with all upside removed. You don't get the money if you don't stay. And also, the $54 price is not a slam dunk for employees with RSU grants issued during the market highs from last year. TWTR peaked over $80, so depending on when you joined your equity is still down a significant amount.