And sorry, but if you think this guy (the only name you mentioned in your post as being 'worthy' of your praise) is any different to all the other arranger demonstrators, I am sorry, but we have left the realms of credibility..!
I can't for the life of me hear any of this supposed 'creativity, sensitivity and originality' here. No more than any other arranger demo-er, anyway. Sorry, I guess I didn't read your original post carefully enough. This and a POLKA band is where you set the bar?
I thought for a while you were serious!
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An arranger is just a tool. What matters is what you build with it..!