I agree- Balance is the key, of course, but sometimes we 'major in the minors' and introduce a legion of artificial barriers and restrictions based on a few people's opinions being taken as gospel, especially when they align with our own personal biases.
I am not saying we shouldn't be guided by those with experience and know-how, but so much of it is based in personal preference, we have to understand that it is just that- personal preference.
And that's a good thing. God can be worshiped and praised in more than one style, as long as the Biblical requirements of Spirit, Truth, and the correct protocols are met.
The fact it is so open to interpretation is why styles can (or should be able to) flow in and out of our worship. However, it can be a double-edged sword that causes people to get too attached to "their" style and create that artificial barrier to letting the Spirit influence through any style.