Lastly: I'm not a corporate lawyer, so I don't know what legal reasons a company has to prefer arbitration over legal procedures. But they must have some. And those reasons are unlikely to lead to worse outcomes for the company.
It is contentious because legal research has repeatedly demonstrated that there are legal fields in which for an undetermined reason the plaintiff faces far longer odds than they would have in court.
This concerns arbitrations that in 90% of cases are in favor of the defendant. While in 'normal' case law you see rates closer to 60%. (Yes the research also accounted for cost differences by comparing similar classes of cases, no-cure-no-pay etc..)
It is also suspected that the plaintif usually gets less compensation for damages through arbitration.
Another issue is that arbitrators sometimes earn a lot money and are obviously incentivised to attract 'customers'. The problem is that there are and will always be many more plaintiffs than there are defendants. So the selection of arbitrators depends on decisions by the future-defendants. (Unless a specific organisation is legally mandated, but I've not encountered this before)
Also, pretrial discovery is much broader in a class action, so much more expensive. The procedures available to a plaintiff in an arbitration are much more limited.
But big picture, it’s better to have more options rather than fewer.
Many of these people are struggling to make ends meet and it’s a lot of effort and lost work to risk for a small payout, but if enough individual claims are won it doesn’t take much effort for some lawyers to start automating the process and file tens of thousands of claims like those against Uber.
https://www.hklaw.com/en/insights/publications/2022/04/uber-...
Oh no - you're facing millions of dollars in mandatory fees to defend against thousands of nearly identical cases in arbitration? My goodness, who forced you to adopt that arbitration clause? How terrible of them.