> Both have 5g net carbs per serving

Depends on what you consider a serving. The second link only has 67 calories per "serving", so really 30 scoops in a day. Using the 2000 calorie baseline, that would be about 150g of sugar, twice as much as Soylent. Also 200g protein vs 100g.

The first link would still take 20 scoops in a day. There's no sugar in it, which is good (personally I hate things like Stevia, but others may not mind), but it's still clearly a protein drink with 372g of protein in one days worth of calories.