I also find the question a little bit strange – I don’t mean w.r.t. this thread specifically, but just in general. People pretty much never say “What do Latin Catholics believe?” yet I often hear “What do [Maronite/Melkite/Ukrainian/Ruthenian/etc] Catholics believe?”
Still there are many points of divergence between Roman and Antiochene theology. Very little has to be agreed upon for two churches to be in communion, which is to say on only the fundamental dogmas.
A major area of disagreement between Roman and Antiochene theology concern, for a single example, an ecclesiastical understanding of the local Church’s relationship to the Universal Church. I know that in the U.S. it is hard to find a parish that really functions like a proper local church–and often when it does the Bishop takes action to disrupt this.I personally believe this not only what is driving many of the liturgical problems, in the Roman church (at least in the U.S) but also what is driving its implosion.
In light of this I believe it is a completely logical for somebody who might feel an sense of dis-ease about their participation of the many parishes in their diocese, but who haven’t yet been able to articulate what it is.
They know they are looking for something, but just don’t know yet what it is. This is especially confusing for converts who converted because they had become convinced that the Catholic Church was founded by Jesus Christ and retains its apostolic authority–after all they are suppose to be home and yet their parish feels like anything but a home.
However, I believe most Romans actually suffer from this sense of dis-ease, although few are aware of it. It is hard to know what one is missing if they’ve never experienced anything else, but if they happen to have some Orthodox friends, for example, who attend a great Church they may start become aware of what their own parish life lacks and as they go looking for it eventually become curious about Eastern rite Catholic Churches.
From this point of view I would argue that it is not a strange question at all.
Also people do often say, “What do Latin Catholics believe?” Almost every Protestant convert has asked this. There are between 3 and 5 million Maronites in the world while there are over a billion Roman Catholics. In effect whenever someone asks what do Catholics believe they really mean what do Roman Catholics believe. Given the disproportionate size of the Roman church and its monopoly in the public mind over what constitutes Catholicism I am happy when people do ask such questions about Maronites. In fact earnestly pray that more people will continue to ask just this question.