At the moment they are nowhere close to being ready for wide deployment or large scale commercial drawing (try to find some videos of modern fibre drawing the speed is absolutely insane).

Obviously the HFT crowd are very interested in these, but they are willing to pay the premiums. Also the next area is probably datacentres where latency is very important as well, and these fibres already provide similar losses to multi-mode fibres at ~900 nm wavelengths.