A flag, as a semiotic object, has a certain set of assumptions (some of them political) built into it. As such,
sammyspurs
is right. Any flag is political. But that opens the door to many, many things as being political.
Considering that Bushy started his coming out party with the (oft repeated, especially by him and) naive assertion that politics and football can't mix (they must; it's impossible for them
not to), then this promiscuous definition of "political" might not fit.
For example, being "pro-equality" is a
political stance. Ask a suffragette, or, better, an anti-suffragette. Being anti-homophobia is equally political (as is being homophobic), since they're tied in with how power is distributed/exercised in the community.
The mistake is that Spurs have hung their claim on this famously slippery word ("political"). Sammy reads the word one way, I another (for me there's no such thing as an apolitical flag full stop), and most of the people on this thread in yet another, which could be considered the "normative" reading of the word.
Spurs should just reserve the right to ban or not ban any flag as they see fit and be done with it. Then we would have been saved the back end of this thread. Especially since that is, more or less, what they are doing anyway.