My apologies for the delay in replying, it's a long weekend here.
The feature was deprecated because we had a large amount of support related to the feature, most of which resulted from the users lack of understanding and knowledge of COM. There are generations of developers who have never used and know nothing about com (we have 2 developers here who fit that description).
As you have discovered, the feature is still there and still works. We don't have plans to remove it in FB7, we still use it internally for some actions (they are on our todo list to be converted to script or .net).
VSoft Technologies Pty Ltd