First off, this is not a straight accusation to the people mentioned here, but instead, a general statement.
Here is my take about it:
It's good to see people come out with new stuff. The more options we have the more we get inspired but at the same time, I see a lot of rushed products lately (non of those builders are members of this site!). Like if certain builders have the need to come out with something quick to bank out some dollars out of the hype.

A rotary or coil tattoo machines are just tools.
I love to work with variety. I think rotaries suit very well for certain stuff just like coils do.
Swearing by one machine style only is limiting yourself to other great tools.