Back then I was using it too. But they still used gRPC at the time, which required the limit to prevent running into issues. Currently transfers use their own dRPC which can handle many more simultaneous transfers without issues. I believe you can monitor these stats. Have a look at this: Guide to debug my storage node, uplink, s3 gateway, satellite
As for the logging issue, it’s in the works, might not be in the next release though. https://github.com/storj/storj/commit/e9dd5b284534962004416e7bc733ddd582b78aef