Yes, I agree wholeheartedly.

I grew up in the Church of the Brethren, which is an anabaptist denomination (One of the historic peace churches in America). Was baptized while in college at a Lutheran school (which was in a Lutheran church), studied Catholic theology a bit while I was in school, spent 7+ years in leadership in an neopentecostal 5-fold ministry setting, and now am a member of a Baptist church and attending a Southern Baptist Seminary. Yes, there's a whole lot of difference in practice, and some significant differences in theology. Yes, they're all still Christian. Yes, they all represent ways that people have found to make a connection with God. Liturgy isn't less appropriate than praise bands - you may have a theological conviction about preaching having precedence over music, but 20 minutes of preaching is still 20 minutes of preaching, regardless of whether you call it a sermon or a homily or just preaching.