What is the controversy between Blake Lively and Justin Baldoni regarding subpoenas in their legal dispute?

The controversy centers on what Baldoni's legal team describes as 'overbroad subpoenas' issued by Lively's team to major cellular providers (AT&T, Verizon, and T-Mobile). These subpoenas seek extensive communication records including call logs, text logs, data logs, and cell site location information from multiple parties involved in the case, including Wayfarer employees and non-party individuals. The subpoenas request all documents concerning ingoing and outgoing communications over a lengthy period spanning from December 1, 2022, to the present. Baldoni's team has filed a letter with Judge Lewis J. Lyman to raise concerns about this discovery issue, suggesting the scope of these requests is excessive and potentially problematic.