Microsoft's lawyers have most likely been working on this case for a while so who knows how recently this process started.
Having said that yeah this is pretty disappointing behavior but I wouldn't be surprised if it's simply part of the company doing things others don't know about; maybe if enough attention is drawn to it it'll be dropped? Yeah that's probably unlikely but so many of their groups are full of awesome people and it sucks when a company does something stupid to tarnish its image.
i have never used Corel Draw personally, but here in India, I have seen it (maybe very old versions )being used in PCB printing and laser cutting shops (probably other shops too that i haven't seen/can't recall now). Seems like a defacto standard in that niche. Don't know whether there are other popular alternatives in the industry though.
