I think, 4 games into the first homestead of the season, it's a little early to make sweeping statements about attendance.
That said, I don't know what more the Twins could have done this past winter to reduce enthusiasm about their product.
Follow up your first postseason success in decades by almost immediately announcing a huge payroll slash? Check.
Show zero interest in bringing your fan favorite and CY runner up back? Check
Load up on obscure bullpen pieces nobody has heard of as your offseason strategy? Oh by the way, coincidentally spend the MLB equivalent of nothing doing so? Check
Trade long time Twin Polanco for nothing? Coincidentally, reduce payroll as the only benefit visible to fans? Check
Add nothing of any real value all winter to the lineup? Check
Pinch pennies like scrooge all winter? Check
Make one ham-handed, insult-to-fans, "we know better than you rubes" statement after another all winter? Check.
So yeah...at the risk of making sweeping statements 10 days in, I think payroll likely is, and will have, a negative effect on attendance.
It certainly was a topic of discussion here.