Hull shipped 13 tries as part of a 76-18 drubbing which ended their season and raised questions about the future of coach Peter Gentle.
There was no comment on that from Pearson on Friday, but the former Hull City chief has pledged to undertake a "significant review" of his club's first-team set-up, which should at least see the Australian asked what went wrong.
Pearson is also willing to pay back those who witnessed the mauling, saying: "On behalf of the club, I want to apologise unreservedly for the embarrassing performance that was produced in our play-off fixture last night.
"The obvious failings of such a performance have highlighted why we will now undertake a significant review of all areas and matters involving the first-team squad.
"Last night's performance was not acceptable at any level and I must apologise to all our supporters, especially the thousand or so that made the journey to Huddersfield on a week night and cheered on their team from the first minute to the last.
"As a gesture of good will from the club, every supporter who attended the game will receive the admission price of their ticket as a discount when renewing or buying a season pass for 2014."
Pearson took over at the KC Stadium in 2011 and pledged to drag the Black and Whites to the very top of the sport.
They were easily beaten in the play-offs in 2011, 2012 and now 2013 and, although they reached this year's Challenge Cup Final, their performance in defeat to Wigan was one of the worst in memory.
"The standard of last night's performance was unsatisfactory, inadequate and far below the standards we should be setting at this club, and the on-going review process will now look at every detail of that," Pearson added.
"Once again I must apologise to everyone and assure all our supporters that we remain committed to delivering consistent success at Hull FC for years to come and we won't rest until we have achieved that."
