Re: "Traditional budo" and "Fighting art"
I would say the perfected technique is one you can apply in randori/shiai.
Kata's primary strength is to give you the opportunity to critically analyze your technique under more controlled circumstance.
I also don't see a contradiction between Budo and Fighting Art. With Aikido I have a choice to either to learn its breadth or to learn what's necessary to dominate in a fight. Either way is possible without loss of either aspect. I of course choose to explore the depth but that's just me.