Yup. Has been the case for a long time now, pretty much when inkjet printers started to become popular.
So you can't blame manufacturers for trying their best to prevent you from using third-party ink, they make their profits on ink.
You might not like the concept, but keep in mind there is no way you could have gotten the printer that cheap otherwise, to begin with.
If you want to avoid that, just buy a laser printer that can be used with third-party toner without a single issue. The overall cost of ownership will even be much lower in the end, maybe not initially, but over its lifetime.
That's a bit of the same discussion as with overall durability of new products, repairability, etc. Sure you want your stuff to be more durable and repairable, but are you ready to pay *more* for that?
Are you ready to live with products that work well for long periods of time but may not be the latest up-to-date gear?