Author of the post here. I don't think you're "doing it wrong" or missing anything because of a cognitive blindspot. Algo skills are important for certain types of problems (scaling, number crunching), but useless for others (interaction design, API design, ...). It's just one of the skills we're looking for, since a lot of our meatiest problems don't require algorithms at all (beyond a simple hashtable or two). If you've looked at your own coding history and don't see the need to be more fluent with algorithms, then you're probably right.