Is there a threshold concept here?

You don't have to agree with a case (I'm taking no position on the substance of the argument) for it to change how you see something. This is from an email from www.ted.com (I have no idea who Ken Blackman is and it doesn't matter);

Ken Blackman on Andrew Mwenda's Let's take a new look at African aid (17 minutes video): The jewel of this talk for me is Mwenda's persuasive case that the aid industry "has distorted the structure of incentives facing governments in Africa." His re-framing of the effects of aid assistance in terms of governmental "self-interest" sheds a completely new light on the subject for me.

Discuss with reference to the criteria... Can it be a threshold concept if you are not persuaded? (Don't ask me! I don't know—this is new stuff, remember?/