Winrate is not the most important thing when you begin to study the game. That's why I've always hated the advice "It's nl2/5/10, don't think too much, just valuebet and win". Becoming a better player is what it's all about.
You're right.
This is poker so: ... However: at the table you "don't think too much, just valuebet and win". After the hand Hero thinks a little bit about it and marks the hand for review. After the game Hero thinks the hand through thoroughly. IMO that is the learning path.