Why not it looks like a real dirtbike. I don't know how much the M3 Pro costs but the EXE 880 is like $10000, that's crossing into Stark Territory. And the 880 does not have a removeable battery. I looked into it when I was looking to buy one. It has a very large capacity battery but it is not easily swappable like say an Ultra Bee. It's one of the reason I chose to build my WR250E is the swappable battery and cost. I've heard the quality of the Arctic Leopards is questionable also I always hear bad things about them, they're not put together well. I have raced against an 800 before and they are pretty awesome.
The super short forks were an odd choice. Especially for the weight and size of the bike. It even looks a little odd up front... stink bug effect. Throw some full length 48mm forks on there and it might be decent.
It's also just a rebadged Kayo Alkaid EC2. Retails for about $6000 on Aliexpress. Yet another example of a subpar bike where you'd be better off spending that dough on a conversion which would be superior in almost every way.