Asking someone to pray FOR you is not the same as praying TO someone.
I think I know what you're saying--- and so, to use the word your way --- we'll call it PrayWS--- I'd say Catholics don't PrayWS "to" saints, in the sense of addressing them as if they were capable of doing mighty works because of their own power or piety, independent of Our Lord.
But using the word as we Catholics have for 20 centuries, we "pray" --- asking for their intercession.
Are they not fellow members of the Body of Christ? Or do they become "less than" members of the Body of Chris when they are in heaven?
++Asking someone to pray FOR you is not the same as praying TO someone.++
That looks like a communication error to me. If someone has ASKED for the intercession of a Saint, that person might say, “I prayed to St. Paul for help.” What is meant by that is that St. Paul has been asked for intercessory help..i.e. praying to God for the person who asked.