Interesting. I hadn't seen it yet. I'll check out how fine-grained it really is. My first concern would (naturally) be network calls, but calling a local service should ideally is distinguishable from calling some address that does not originate in the top level.
If anyone ever check this thread: it works well. Use the json output, and it'll show the call path for each "capability" it detects (network, arbitrary code execution, ...). I use this on the output to organize it into a spreadsheet and scan quickly: