Given the artificially low price point of recent years, 20% this year seems acceptable.
Cool, no argument with that.
The place holds over 13,000 and the biggest crowd was Fiami ~9000 which means "only" 4000 empty seats. Most games were below 50% capacity.
With that in mind, hypothetically, how would you react if your season ticket renewal showed up and the increase was 55% or so? Not lower bowl either.
Since this is hypothetical, there is no right or wrong answer.