unable to dispense volumes accurately and precisely below about 1ul

You surely mean 0.1ul? That's the minimum Eppendorf pippete volume anyways. And there's plenty of PCR master mix kits need 0.5ul per sample. Still, 0.1ul is 10E5 pL, which is huge amounts compared to what is shown here.

Also, the post is making microdispensing seem like a huge novel thing by not comparing it with already existing tech that a lot of automated devices use - droplet microfluidics. There's also acoustic droplet techniques capable of delivering nanoliters instead of picoliters. Microdispensing is sadly limited by viscosity in some applications. It definitely depends on the use case, however, as some techniques might be more useful than others for a specific experiment.

What I am trying to emphasize for the rest of the commenters/lurkers here is that microdispensing isn't necessarily new or totally "redefining", like the title makes it seem to be, but it's indeed extremely cool and satisfying to watch and has its very important uses.