Your experience with SFPs does not translate to hard drives. Hard drives are very, very, very standardized. SFPs are not. Yes, all SFPs have a standard hardware interface, but the optics coding varies wildly.
Remember all those switch vendors (especially the money grubbing ones like HP, Dell...)? Their switches won't work with optics that are not coded for THEIR hardware, even though...an SFP is an SFP... I mean look at fs.com and the gazillion choices they offer for optics coding.
HDDs on the other hand are vendor agnostic. They HAVE to work in "anything" as long as the hardware interfaces (i.e. SATA/SAS/NVME etc) are matched.
Calling a spade a spade is a good thing. Synology got greedy, tried to fuck over their customers and the customers told them "Go fuck yourself, you aint that unique".
Remember all those switch vendors (especially the money grubbing ones like HP, Dell...)? Their switches won't work with optics that are not coded for THEIR hardware, even though...an SFP is an SFP... I mean look at fs.com and the gazillion choices they offer for optics coding.
HDDs on the other hand are vendor agnostic. They HAVE to work in "anything" as long as the hardware interfaces (i.e. SATA/SAS/NVME etc) are matched.
Calling a spade a spade is a good thing. Synology got greedy, tried to fuck over their customers and the customers told them "Go fuck yourself, you aint that unique".