I'm not going to debate how anyone interprets what I posted. The last sentence says it all that the GCWR of both vehicles must be under 26K for a class D operator.
You can't take a minute fraction of what it says and then say that is it.
It's not a matter of interpretation but a matter of literacy.
You can't add a 26K truck and a 10K trailer together.
Sure you can. It says so in #2 of your link.