Sorry, I can`t agree.
I feel it is very important to study any hand that goes to showdown and deduce information about your opponent such as:
How aggressive is he preflop ?
Will he make a continuation bet ?
Will he represent the flop or try to buy a pot ?
Is he prepared to bet against an overcard ? against a flush ?
Will he chase a draw ?
and so on and so forth. All this is invaluable in helping you to put that player on a hand when you are in a pot against him. If it helps you to win just one big pot per session which you would otherwise have lost, it may be the difference between being a winning or a losing player overall.