I realize many protestants refer to the “Catholic Church” as the Roman church.
You are entitled to falsely believe whatever you wish.
I wish you well and welcome you to learn the Truth at a Catholic Church.
The Roman Church has no special corner on Truth. Truth is found in Scripture revealed by the Holy Spirit. It is open to anyone who seeks the Truth. Any sect pretending to control or have special access to a Truth is a cult. Flee from such.
Because that is how Roman Catholics understand "Catholic Church".
I wish you well and welcome you to learn the Truth at a Catholic Church.
If "Catholic Church" doesn't mean Roman Catholic, then what does it mean?
If the dogma doesn't mean Roman Catholic why does it say everyone has to be subject to the ROMAN pontiff? Why not someone else?
“and welcome you to learn the Truth at a Catholic Church.
Unfortunately, it will be a partial truth, mixed with paganism to pervert the simple saving truth of the Gospel of Grace.
We do it because all of Catholicism is not under one head.
The EO do not adhere to the doctrines of Rome and by using the generic term of *Catholic* when addressing something specific to Rome, that would by default include the EO.
Since the error being addressed is specific to Rome and not the EO, it would be wrong to include the EO in something they don't agree with or adhere to in the first place.
As for the nonsense about them being in communion, the Great Schism happened in 1054 and the Roman Rite and the EO have been at odds since then with each side claiming that they are the original form of Catholicism as it was established by the apostles, and the other being the ones in schism.
And I actually see the EO holding to a more Scriptural view of Christianity than Rome does.