Not the worst thing for the program in the long-term, but very bad for the next 2 weeks or more. The only worse thing would have been Sanders missing 2 weeks. So, the 2nd worst thing, not the very worst thing.
Remember, RU is already down 1 front court player, in Doorson. With Freeman out, RU is down to just 9 scholarship players, by my count. And only 3 of those are Centers or Power Forwards.
This will force RU into more 3-guard offense, and more zone. It will also remove one of RU's most effective offensive players from the line-up, from a team that is already offensively challenged.