Let's see:

https://en.wikipedia.org/wiki/Laffer_curve

Right on the introduction it clearly says that any argument based on the curve is pseudo-science.

https://en.wikipedia.org/wiki/Washington_Consensus

Is biased in claiming the consensus is a contentious topic, instead of only a tiny well founded minority ever supporting it. But it's the same bias you will see in any history book.

If we go extreme in another direction, this one has the same bias of representing fringe views as equally represented in a debate:

https://en.wikipedia.org/wiki/Communism

If we go here:

https://en.wikipedia.org/wiki/Management_science

There's a clear neoliberal bias. But if instead we go here:

https://en.wikipedia.org/wiki/Public_administration

There's a strong modernist bias, with a secondary classical liberal one. What is about exactly the same bias you would see on the main literature of both subjects.

So, no, except for behaving like an encyclopedia and reflecting the literature biases, I fail to see how the wiki is neoliberal as a whole.