Yes, that is obvious. That fact we both acknowledge. I was trying to get you to recognise you really do not have a very good idea of why we worship as we do. I was trying to provide you with some knowledge so, if you do want to criticise us, you will have a firmer base of knowledge from which to do so.
I understand your argument. I've heard the argument in different forms myself. In Baptist churches over style of service. Not that they could necessarily point to a specific verse for their argument but rather, 'that's how we've always done it'. Of course they would use the Bible for their argument even when the verses they used didn't fully support the argument. In the end, that is a man made, not God made, argument. And no offense but this statement by the Pope is the same argument
I look to the Psalms. Make a joyful noise. To me that means however the praise is done, if it's praising God, it's acceptable. It may not fit others' tastes and that's why we have different churches and in some cases different denominations.
Mind you, I'm not the sort that likes drums and guitars in church but for some it works. I just think there are more musical ways to praise God than Gregorian chants.