I can't tell what is subject and what is object in your reply. But if I have your words parsed properly, than I believe you are making a false statement. Let me try again.
My post is valid. In Segwit transacting between upgraded clients becomes more efficient; there is no increase in capacity for nodes that have not upgraded (or non-Segwit nodes). They are able to receive the data but are unable to validate it. If it is able to validate it then the client it is a segwit node. Not sure if this was changed in any way since the last time I've read about it (there's also a proposal in regards to it by Peter Todd which I've yet to fully read).