We don't know what those logs will tell us, and if it was designed with privacy in mind it shouldn't say much. Binary software images also don't tell us what the binary is doing, similar to how having all of the iOS files doesn't give you insight into how the OS was programmed. If the server source was fully open source and each machine could attest it was running an unmodified binary, then we might have a level of accountability. As-is, this is no better than Apple's "Trust me, bro" mindset they exercise securing iOS and MacOS.