Re: Click baity headline is click bait
"Isn't it ironic" is a question and is not semantically equivalent to the statement "All that follows is (or is not) ironic".
If all that follows is clearly not ironic then the question itself *could* be intended to be ironic, with the implication that the positor of the question is well aware of the lack of irony and is precipitating in the respondent the notion that the non-ironic observations may be ironic when they are not.
Or the positor is just using "ironic" poetically or even perhaps ignorantly.
Pays your money. Takes your choice.
Either way, it's a catchy little ditty.