I think some people rely on the historical fact that consumer 7200rpm SATA drives used to be nearly identical to their enterprise 7200rpm counterparts. Consumer SSDs are very different from enterprise SSDs; the former typically lacks power loss capacitors, which should be a nonstarter for anyone using them to run databases.
The reason to avoid consumer SSDs in "enterprise" situations generally isn't their IOPs... the IOPs of higher-end consumer drives is more than sufficient for a lot of enterprise-y use cases, especially read-heavy workloads (which I would guess is CamelCamelCamel's workload)
With enterprise drives you're paying for things like beefy capacitors to provide safe shutdown in case of power loss, write durability, etc.
When I was doing managed Colo we used Intel "Datacenter" drives (ex. Intel S3500 SSD) which were priced at around $1/GB (so ~3-4x as expensive as the consumer counterpart). They were performant and, luckily, we never had an issue with them.
>so ~3-4x as expensive as the consumer counterpart
This is likely the answer. If CCC has to ask for donations to afford the consumer version, I imagine they are in no position to purchase an equivalent amount of storage in enterprise SSDs.
Consumer SSDs lack IOPs and should be never used on database drives.
Also, I never use consumer SSDs on things that are not a joke. Serious things need enterprise SSDs.