Notice how many time slave, slavery, non-slave holding or slave holding are used? I count nineteen. It’s obvious how the Texas commission wanted to differentiate themselves from the non-rebelling states.
Well, there were no rebelling States, since there was no "rebellion", but if you mean the invading States, then yes, it's pretty obvious that Texas discriminated on the basis of "screwor/screwee". That would be a legitimate policy basis for going out of the Union, and in fact the Texans mention it a lot, as you can see.