For the sake of the question, let's assume that such measurement existed, and then let's assume that there's an AI that surpassed that measurement.
If we truly believed in that measurement, then the answer is quite obvious: yes, the intelligence of the AI has not been limited by the intelligence of the creators.
Closer to the real world, we might start arguing that this actually performs some kind of intelligence and not everything that makes up intelligence. This is a case where we don't trust that measurement anymore to mean what we said it would mean.
Also, another debate around it is whether the AI is really intelligent, or if it has been tuned just to skew the results of the measurements. This is the case against the Turing Test, which was meant to be a particular point in that scale. And, again, it is a case where we don't trust the scale anymore: there must be something else that AI needs to do before it is really intelligent, right?
Let's leave intelligence aside because it's a fuzzy concept for us and focus on something different. As humans, could we create something that's taller than we've been able to lift up?
As humans, have we been able to construct anything that can go faster than the fastest of humans ever was?
As humans, have we been able to construct anything that can perform task X any better/faster than any human has been able to do?
The answer to all of that is: yes, we've been able to do it so far. Why would intelligence be any different?
At the moment we define intelligence as a particular set of aspects (hopefully, that can be measured) then it is easy to create machines that do it better. We've done it with games, we've done it with conversation, we've done it image recognition, all within living memory of places where AI has stood up and performed better.
And all the meanwhile (just in the first part of my explanation) as humans we've gone back and said: "well, that's not realllly intelligence, it's actually missing Y". And we repeat.
To answer your question: it's very easy to overcome human capabilities, and I think intelligence will not be the exception. So yes, the limitations of the creators is not a limitation for the creation. We don't yet have such scale because we're not entirely decided on what we want to measure exactly.