I looked at some of those links where specs were stated. Largest tire size I saw was 29 x 2.4. Technically a DHF/DHR combo are 2.5, although that's a 50psi measurement. However, most all modern brand bikes (like my Fezzari Signal Peak marathon XC) now accept up to 29x2.6 AND a 27.5x2.8, so you can run either size. That's a deal breaker for me if I can't fit say a Hans Damph 2.6 in there.
The thing that gets me is if they are gonna put in so much trouble as to copy a bike, why not spec it current? I mean it's a new frame and they had to do the work to setup the molds and what not. Doing things like BSA BB, wide tire capability, boosted rear (148mm), etc, this should be the norm. Just my 2 cents...