I'm inclined to agree with you. ThanX for checking their website.
Here is a scan of two prints. The original, in 35mm was shot on Kodak TMY and printed on Ilford MGIV FB. The other is an enlarged negative using a reversal process on Arista APHS. The enlarged neg was being made for cyanotype, this negative is a reject, but looked dense enough to work with my paper emulsion. It's a first try, not tooooooooo bad. I think a quick dip in some bleach would liven it up.
Ilford is on the right, of course, and mine on the left.