I've always considered DK to be a reputable lower price point BMX company. If you look back there are some old threads about their 26" bikes; this one and the Asterik. If I recall, all have been good for the price point.
The move to DK supplying Walmart is recent. If it's the same thing, go for it. But the Walmart version could have cheaper components to drop the price point lower. I don't know.
I have heard a lot of horror stories about getting bikes shipped to you or the store through Walmart. And damage claims never getting resolved. If you buy this bike I'd physically buy it and do a good tune by you or a bike shop before riding. Walmart employees do not know how to put a bike together. Or find another non-Walmart supplier.