A disclaimer: I havent played the game and probably wont for a few months to a year when its on steam sale so I'm going to just speak based on what the article is saying and experience with other games.

I think its a tricky balancing act to make when it comes to creating an open world game where you travel through space. Different games have approached it differently with some games opting to scale everything down super small and letting you suspend disbelief(like outer wilds) but that wouldnt work as well on a game like this. Other games go for the hub approach where your ship is a hub that connects you to different open maps on different planets. This approach also works in letting you travel the stars and lets the story do the heavy lifting of conveying scale, but it doesnt mesh with the bethesda open world style. Likewise it can also sometimes turn your ship into just a metroid style elevator and so instead of feeling how big the universe it you effortlessly fast travel across the galaxy. Other games fill the space by making big procedural generated never ending expanses, but that can be hit and miss and not really what a lot of people want in a game like this one.

I understand wanting to pad things out a little bit to prevent things from feeling toy like in the way that Outer Wilds did, but it does run the risk of just being boring and uninteresting and leave you wishing for a more "gamified" tighter experience or at least less openness and more zipping to the places that matter. That said if exploring is worthwhile it could make it less of a bummer. I think Wind Waker and breath of the Wild are good examples of this. Wind Waker's sailing was notoriously long and boring when it came out, however while most of the islands are small rocks, they all have something. Some secret, some rabbit hole leading to something interesting, a piece of heart, a chest of ruppies, SOMETHING. If you engage with it and mark your map along the way, and explore then the mostly empty map becomes a little more engaging.

Likewise Breath of the wild's map isnt full of little side stories and secret villages or anything so if you decide to go off into that distant peak it will usually be self motivation. That said the game does reward you every time even if it's not a huge reward. You will find ruins of some mysterious lost nation, you will find ruins referencing past zelda games, and shrines, and even a stupid little korok puzzle. The little gamified reward for exploring the area makes it less barren and worth exploring. So if it's more Wind waker island, or breath of the wild and less Mass Effect 1 I can see this empty areas working.