Missing the point by a mile, I'm afraid. Let's grant for the sake of argument that everything you've said about Galway and Canning is true (it's not, but anyway). That doesn't change the fact that Cork over the last fifteen-odd years have been fragile. Look at how they have exited the championship in that period: no-shows in 2010, 2011, 2014, 2015 and 2021; losing having gotten into strong positions in 2016, 2018 and 2019; losing tight games in 2009, 2020, 2022 and 2023 (against both Clare and Limerick). Even in 2013 Cork had a golden opportunity to win the drawn AI but didn't close it out.
Obviously any team can fail badly on the day, or blow a good position, or be edged out in a tight match. But it's happened repeatedly to Cork, too often to be just a string of coincidences imo.
I'd add that another sign of fragility is if a team is knocked back by a bad defeat. Of course it's impossible to be sure, but it looks to me that the defeats in 2014, 2018 and 2031 badly dented the confidence of those teams - in each case performance levels dipped noticeably the following season.
2031? Back to the future.