I look at it this why is they wanted to ride on the coat tails of PA to see how well their products are received. It's often a way for small developers to reduce some overhead. They basically make one product that serves a small group. It seems though this is short term thinking and made more enemies instead of friends. Most developers allow for a license for both platforms. If you want to have it on a Mac and Windows you pay extra.
There doesn't seem to be a lot of attention about this policy on the net.
Cantabile has been around for a long time. It's the same price.
Most DAWs have features like this. I wonder if someone could do the same with VSL VEP.
It's a niche product but if it were an EQ or compressor I could see more getting upset.
I don't think I would want to go anywhere longterm with developers who have strange policies. They attitude is you need us and we don't need you.
We always need more DAW drama. This one doesn't garner much attention which probably means not a lot are using it.