The critique is not generally substantive, to me or any intelligent observer.
I'm not opposed to the notion this game is, as you say, basic. Perhaps a comparison to a better game with similar but deeper features, stated clearly and specifically, would make for a more compelling argument.
Otherwise you are merely disagreeing over personal preference. For example, I don't like bullet hell games. It doesnt matter how great someone designs one, I won't be interested.
Allow me to play your side to demonstrate a better (and fairer) argument. I am concerned about the trade aspect of this game. Trade is really only interesting in a market (preferably dynamic and complex) and, as the dev said, it seems changes revert as soon as you leave the local area. This suggests to me that the markets you're dealing with will have to be quite small. The smaller the market the more simplistic the trade and thus, I fear, it may be too shallow to be interesting.
Additionally, what is the capital earned from trade for? A great example of a sprawling dynamic market in a similar setting would be eve online. Aside from the scale of the economy being so large, money is integral to maintain a fleet for competing in combat with other player run factions, which creates motivation for players to act in the market. If NMS has no such impetus, what would compel us to trade? For upgrades maybe? Then what is resource collection for?
These questions and many others were left unanswered by the dev, leading me to accuse him of being coy as you might remember because I believe he knows what people want to hear from him, so we will have to wait and see. It is also possible I am missing something, perhaps trading plays a niche but still useful and interesting role in something not elaborated upon in this video.
Aside from that, what a pathetic showing on ign guys part. I can't help but imagine if total biscuit got a hold of the NMS dev he'd wring some more detailed info out of him. SLURP SLURP SLURRRRRP