I personally don't find minky fabric to be very stay dry, and they are prone to wicking. I've given up with minky inners. I guess it all depends what you put it next to though. We all know that hemp locks wee away better than mf, so how can you be sure minky isn't absorbent if you always put it next to bamboo that will lock wee away better?
I think "minky" is just a type of microfibre fabric where the loops have been shaved to form a pile to make it softer. The absorbency comes from holding moisture between fibres, rather than absorbing into fibres like natural fabrics.
I personally hate microfibre with a passion. I hate the way it feels, and the wee gets squeezed out of it the second your tot sits down. I like natural fabrics, from an environmental point of view, comfort, absorbency, feel, the list goes on. But I have tried the new EF, and I have to say it is brilliant. The minky fabric is a longer pile than weenotions use. There's no hidden middle layer, it's just minky. When you open the parcel, the first thing you will do is to stroke that minky on your cheek. I guarantee it! The fit is better than the V2, and I would say the performance is just as good. I don't know how it's so absorbent, it just is.
I think rather than criticise it or say that "that can't work", perhaps you should try it. If you're not prepared to try it, then please believe the people who have.
Please also remember that although tots bots isn't a WAHM working alone, it is still a family run business. The mum who runs the company is just very *very* good at what she does, she's very hands on from design through to marketing, along with being a mum on top.