Quoted from kermit24:
So if you don't care about the score, why do the multiplier rules bother you so much?
Exactly. This confuses me, if you don't care about score and you don't like the multiplier rules, then just completely ignore them. You don't have to worry or get distracted thinking about moving the shot multiplier or going for the 3 bank, etc. Just ignore it if it bothers you so much (hell most people unintentionally ignore the multiplier rules Lyman put in Spider-man and to me that's the one thing that really changed that game from a chopping wood fest to a must have in my collection).
These extensive multiplier rules are a way of almost getting multiple games in one. I can focus on score or I can focus on progression or I can try to do both. It gives me new strategies and ways to approach the same game which, in a home line-up, helps keep things fresh.