Peer review is useful, but let's not pretend it's the only way forward for a theory of everything. It's a very, very modern practice. We did a lot of great physics before it existed.
Nearly everything wolfram does is available to anyone who is interested (including code!).
Not saying that you're necessarily wrong but be careful not to compare apples to oranges: There is a huge difference between fields like math & physics on the one hand and fields like psychology on the other.
But that's only statistical - if you want to quickly screen thousands of research papers and the only signal you have is peer review and maybe citation graph - and doesn't apply to specific papers or the research program of a specific person.