It is extremely early days for these offerings. Synthetic ferts are a relatively mature technique and the related product offerings (which are now effectively commoditized) had state-subsidized R&D for several decades. Mycorrhizal inputs have had a hundredth of the R&D and only been used commercially for a few years at best.

Its not really a fair comparison. This is like comparing PDAs to desktop computers in 1991, and surmising that mobile devices are just marketing hype.