Unless you grow and prepare all your food yourself, you have this problem with anything.

You have it disproportionately more often with Soylent.

Other food manufacturers go for years, with tens of millions of units sold each day, without having a recall.

Other food manufacturers have been around for a lot longer.

So what?

Plenty of new companies are capable of producing food in similar or greater volumes than Soylent is without any recalls, why has Soylent had more than one recall?

Soylent aren't even doing the production; they're sub-contracting it out to existing companies.

So, mass production is hard, supply chains are hard, shit happens. A recall of ~700 boxes isn't enough to damn the whole company.