Schneier is wrong. Notably: this is not a subject Schneier has particular expertise in. There's a layperson belief that "cryptography" is a single domain, but it is subspecialized. You might take Schneier seriously for block cipher cryptography (though that field has moved far past the last serious engineering writing Schneier did about it), but I don't think it was ever the case that Schneier was someone you'd take to the bank for asymmetric cryptography.

Schneier has thousands of citations to his peer-reviewed scientific articles. He has authored a number of books in cryptography, and has thought cryptography in major places. He has been involved in the creation of many cryptographic algorithms. His contributions have been mostly in the area of symmetric crypto, but that doesn’t imply that he doesn’t understands well asymmetric crypto, especially the RSA. He teaches this stuff.

A lot of us don’t have /any/ track record in /both/ symmetric and asymmetric crypto.

It is in fact not true that Schneier is an especially widely cited scholar on this subject.