I don't think that names on the team matters so much for the token valuation. It may be important before and during ICO, but after the distribution the most important thing is delivering the product. In case of Effect.AI it will be Mechanical Turk platform (at least for this first phase) which should be launched in beta version in June, and for SingularityNET it's AI Marketplace, which is in alpha version. Right now the two projects aren't directly competing, plus the market is big enough to have more than one AI projects.
I agree with what you highlighted above. The explanations are clear to everyone who wants to know the platforms of the projects they are asking about. They are not maliciouse, like some of the ones I have read above.