I don't think it's that disruptive. One thing that the 2009 roadmap for additive manufacturing has emphasized is the need to move from point to line and area deposition[0]. This still scans a point like stereolithography has done since the beginning. We now have stereolithography machines capable of area deposition by using a DMD projector[1], often called DLP, that are approaching manufacturing products at high volume[2]. Some DLP stereolithography machines now have resolution on the order of 10 micrometers over a 160 mm by 50 mm area[2]. We're having to develop new ways to describe 3d geometry just so that we can take advantage of this resolution. So there is potential here for both fast and incredibly high resolution using DLP stereolithography. We've also seen the development that the 2009 additive manufacturing roadmap couldn't anticipate: volumetric deposition[3].

In addition, there are some potential disadvantages to prism scanning. Prism scanning can only do raster scans, we can't define the outline of a part in vector mode. Although I will admit that this may not be as much of a problem if we can control the brightness of our laser. In addition, in stereolithography it is advantageous to carry out raster scans perpendicular to each other, this is because the photopolymer contracts as it cures and scanning in both directions helps make this contraction uniform.

[0]https://pdfs.semanticscholar.org/4716/c69f0b90a158589e54248a... [1]https://www.youtube.com/watch?v=UpH1zhUQY0c [2]https://www.carbon3d.com/case-studies/adidas/ [3]https://www.youtube.com/watch?v=31xHZvUP1Ls