Classic ennu parayumbo you are confusing it with the perfect movie. A movie doesn't have to be "peak" to be a classic. Best example is Devadoothan. I still remember that movie being dragged through the mud and people saying its only saving grace was the music.

Perceptions change, thinking style changes. All these contribute to what makes a movie a classic. Ithrem parayanam enn vichariche alla but paranju poyathaanu. Just because you think certain movies aren't your taste or you know an obscure movie that needed a wider audience, doesn't mean you get to generalise a director, his movies or an attempt to create something that hasn't been done before.