This puts a rather different spin on things than the title implies.
[0] https://www.reuters.com/article/twitter-ma-musk-idUSL1N2ZR1N...
Unless those 21 different people had 21 different numbers, wouldn't one be just as good as 21?
However, my naive guess is that she’d authorize a lot of discovery if the arguments for fraud were already convincing to her. At the opposite extreme, some very limited discovery might make sense even if she thought the argument was likely bogus, just to deal with this argument now rather than on appeal.
I wouldn’t read a lot into this decision, but I also don’t think it sounds like a amazing win either.