Right off the bat, it's worth noting that Soylent has an unusually large serving size of 106-142g [0], compared to the products listed above which have an average serving size of 30-40g, and therefore position themselves as being 'better deals' because they can claim to have more "servings". But otherwise the nutrient ratios are quite comparable and it's disingenuous to suggest otherwise.
[0] https://faq.soylent.com/hc/en-us/articles/204409635-Preparin...