yeah but in the context of the whole review it sounds like someone who does not like the gameplay that much. Which is fine to think

But the gameplay is as narrow as it gets: you run along beautifully parallaxed corridors and through stunning 3D rooms shooting at a near endless supply of green lizards. That’s it.

As it is, once the power of Doom's graphics has worn off (they're amazing, so give that at least a week or two), you’lI be longing for something new in this game.

That said, though, there are problems with the game (Edge has no intention of joining the rabble mindlessly praising Doom beyond its worth). Yes, it is good in fact it’s a very, very technically impressive piece of programming but where's the genuine 3D (look up and down) of Ultima Underworld? Where’s the variety in the gameplay (it’s all just kill, kill, kill)? And looking at it coldly, what is there really in Doom (apart from the graphics) to set it above even the most average, most highly repetitive and tedious 2D shoot ‘em up?

Like I think issue they had with the game is more the lack of variety more than literally not being able to befriend the demons

This person probably preferred playing System Shock since you make more choices in that about what kind of playstyle you want.

Edit: Hopefully this author later played the Shin Megami Tensei games if they really wanted some demon alliance action