re: Are there any acceptable excuses to abandon a team?

I love football so much that my Saints diehardness has faded a great deal.

They will always be my favourite team, but it's also kinda fun when they lose to see everybody get so upset. RedZone is so great that I rarely watch only the Saints now, they're on my laptop with redzone on big screen and maybe my survivor game or biggest wager game on my phone.

Then I became a huge Brady fan (and now Burrow and Rodgers) so that shakes things up. It's also fun to have backup teams like the Bengals and Broncos and Seahawks and gambling and big money survivor contests muddied the water even more.

TLDR; you don't have to "abandon" your team, just enjoy other teams and storylines and that lessens the frustration of your team.