Here's why:
* Licensing and Distribution: The rights for English dubbing often depend on various factors like popularity, financial viability, and the availability of voice actors. While the first season of Kuroshitsuji was dubbed, it's unclear if the same would apply to the second season.
* Availability of Source Material: It's possible that the studio might not have the rights to dub the second season.
* Popularity: Although Kuroshitsuji is a popular anime, the popularity of the second season might not be sufficient to justify the costs involved in dubbing.
While it's possible that the second season might be dubbed in the future, there is no confirmed information at this time. It's best to keep an eye on official announcements from Funimation, Crunchyroll, or other anime distribution companies for any updates.