Yes, in general philosophy classes do tend to be Eurocentric. They engage a body of critical argumentative writing that by and large comes from Europe and the United States. Contrast 2 senses of the word "philosophy"

broad sense: thinking about stuff, worldviews, the "love of widsom" (transliteration from the greek)

narrow sense: a tradition of critical inquiry about basic questions in life that seeks to establish consensus through argumentative persuasion.

Philosophy classes are generally concerned with the narrow sense. They are interested less in the question of "what do you believe?" and more in the question of "what can you prove?" Or to put it another way, "can you convince a reasonable skeptic?"

In my intro phil class we used a "multicultural philosophy reader" and my experience was that while some of it was interesting, most of the non-western stuff was either non-argumentative, or if it was argumentative, it required the reader to accept an entire system of thought such as Islam or Buddhism before they could chew on the meat of the argument. Westerners for the most part don't already buy into these systems of thought, so it's difficult to get them to engage the argumentative point at issue. For example, we read one author who made an argument rooted in Islam that feminism is causing the destruction of western civilization. Perhaps if you happen to accept the divine authority of the Koran, this seems like a sensible thing to say. But from the perspective of most westerners, this amounts to using superstition to justify bigotry. Why not appeal to the tooth fairy to justify slavery while we're at it!

For these reasons, I think a focus on the body of literature that began in ancient Greece and flowered in Europe and North America is less unreasonable than it might seem at first glance. It's great to be familiar with other systems of thought, but there are difficulties in using the intro-to-philosophy classroom to grow that familiarity, especially given how wide and deep the domain of western philosophy already is. I know some departments will offer classes on Eastern philosophy. I always wanted to take one, but the prof who taught it at my school was a prick.