Two reasons:
1. They make think this process is a sham, and have argued it is illegitimate, but they really cannot afford to guess wrong and lose. There is a non-frivolous argument, at least, that this process was agreed to in the CBA.
2. Generally you cannot raise when attacking a ruling points that you could have raised, but didn't, when the matter was before Goodell. Otherwise, you will be met with waiver arguments before the district court judge.
Those are two legal reasons. Additionally, I have no problem "showing my hand" if it's a strong one.
1. They make think this process is a sham, and have argued it is illegitimate, but they really cannot afford to guess wrong and lose. There is a non-frivolous argument, at least, that this process was agreed to in the CBA.
2. Generally you cannot raise when attacking a ruling points that you could have raised, but didn't, when the matter was before Goodell. Otherwise, you will be met with waiver arguments before the district court judge.
Those are two legal reasons. Additionally, I have no problem "showing my hand" if it's a strong one.