Basically because 99.99% of the people truly believe in the saying,
"It's not whether you win or lose; it's whether you win.",
AND
most, not all people, can be ruthlessly lazy.
Combine those two and you'll see most people's apparent pleasure in bowling comes from winning bracket money and pots, not from the peleasure of executing better and thus beating their opponent. So much of the talk ont he lanes today was which brackets they were put in, who they're against in those brackets and what they have to bowl to win their bracket, NOT what they have to do to winthis game or how the lanes are transitioning and what they have to do to get back to the pocket.
(No, this isn't as far off the topic as it might appear.)
As I have said a few times here, in bowling both on TV and on your local lanes, it seems that the better executor rarely wins.
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"When we choose an action,
we also choose the consequences of that action.