I get it, although, to even sell an H330 on a Dell PowerEdge R840 is like selling standard breaks on a Audi A6 and making the driver request anti-lock breaks.
They used to do this until the law changed and I can tell you as someone from snow country, this is what good drivers want. Anti-lock brakes kill a few good drivers to save even more bad ones. For the majority, they are great, should probably be required by law. But it totally screws people that know what they are doing and have that control. I've known a lot of people having anti-lock induced accidents, mostly in snow.
The point being, like anti-lock brakes, the H330 is something customers demand. If Audi had customers demanding not to have anti-lock brakes (and they could sell them) then it would only make sense for them to sell that configuration. The H330 is exactly like that, it has use cases, it has customer demand. Dell is absolutely faultless here. In fact, we'd be upset with them if they refused to sell us configurations that we need.
Every server vendor, every hardware RAID vendor, offers configurations like this. Every single one. Why? Because it is one of the most widely demanded solutions. If Dell didn't offer this, people would go to another vendor to get it.