I agree with the OP's concerns about the game, being more specifically just how involved is the decision making and strategy?
Depends on how involved you think the following questions are:
Which character will you play?
What cards will you select for your starting deck?
Upon completion of a scenario, will you upgrade any of your starting cards and which ones?
Which location will you start your search?
Will you 'keep the party together' and close locations faster and easier or will you spread out so as to locate the villain quickly?
Will you use your blessings to gain extra explore actions or to boost your or a teammate's skill check roll?
If you encounter a villain too early how many of your cards are you willing to use to defeat the villain when you know he/she/its going to escape regardless of whether you defeat it or not?
Should you try and clear out the easy locations first, getting all the stuff those locations provide earlier or will you take on the more difficult locations early so as to make it easier in the later rounds of a scenario?
What will you do to ensure that your deck doesn't run out of cards?
How will you manage to reduce or recover from damage that you take?