I think that point could be taken too far. In fact the Eucharistic prayer sometimes used before the Words of Institution often includes the epiclesis that the bread and wine become the body and blood of Christ.
My impression, at least at my particular church, is that there isn't a huge difference between Lutheran and Roman Catholic beliefs, at least pertaining to Christ's presence in the sacrament. Lutherans and Roman Catholics are certainly in more agreement than Lutherans and the Reformed, on this point.
I think it is a bit of a mystery what is happening at communion. The important thing isn't to understand it, it's to believe you receive "the true body and blood of Christ for the forgiveness of all your sins".
It is always difficult to strike the right balance. It requires an extended conversation, and those new to the topic shouldn't assume they've got it all down at first blush. With that said, I agree with you - getting too caught up in explaining details can become a distraction to the benefits of the sacraments, which one receives through faith, not through reason. Still, I do have my pet concepts that make the idea of the sacraments more personally satisfying for me than what is written in the Confessions.
We probably are closest to the conservative branches of the Anglican, RCC, and OC churches, but there are still important differences, and that is what I meant to emphasize. If you take the chalice to a lab and analyze it, you'll find wine ... no blood. The RCC has to use mystical handwaving to explain why that is, whereas that result is what Lutherans expect.
If it were merely about chemistry, it probably wouldn't be worth the bother to mention it. But it drives concerning differences in practice. My experience is that if you attend an RCC service, you only receive the bread, not the wine. There is concern about dribbling Christ's blood on the carpet and wasting it. The wafer must go directly into the mouth whole for the same reason. There is a humorous story from
Angela's Ashes about how Frank McCourt got sick after his first communion, and his grandmother berated him for casting Christ into the loo.
The RCC has this idea that they have somehow captured Christ in the bread and wine, and can therefore use Christ without his permission. It becomes magic rather than God's power. So, in some RCC churches they do the consecration before the service and place the bread and wine in a special room where people can come and "be with Christ" to meditate ... as if Christ doesn't hear their prayers otherwise .. as if Christ is not a willing participant in the sacrament ... as if his body/blood can't come and go as he pleases.