[elefantastisch]

I've seen the same problems when this technique is attempted.

Something else to consider is that weights scaling linearly may not make sense.

More importantly, criteria may overlap. In the example in the article, I suspect technical ease and scaling ease are highly correlated, which effectively means you're double counting.

Basically the technique only works when you have fully independent criteria which cover the full spectrum of what matters and which can be weighted objectively using a scale that represents true relative importance.