Some of the requests are directly for the names and ages of individuals, but the government doesn't have the statistics requested and want to "provide records from which requestors may derive answers to their own questions" for the statistics requests as well. The ACLU is objecting to this to the extent that it would "include highly sensitive information" that identifies individuals. The ACLU is not asking the court to block the government from releasing raw statistics. They want to prevent them from releasing a literal list of transgender and gender non-conforming individuals.

There are also requests for infractions, complaints, reports, etc. If you think this is agienst the law, then you agree with the ACLU.