I would hesitate to dictate business models to Topping, but I rather suspect they have a game plan that does not involve chasing niche players like MiniDSP or RME.
MiniDSP made their business on the back of providing easy to use EQ and crossover software, and sold hardware with lacklustre analog performance embodying it. Nowadays they are moving away from the OEM and DIY markets and by partnering with Dirac have an interesting if still niche market. DSP is not an area for the novice to try to get working. It is an evil hybrid of a set of computing skills that not many people have the need to master together. So selling pre-canned DSP software systems was a good start for MiniDSP to get the company going.
Going into the home studio market is probably not on their radar either. That is a pretty crowded space. As much as we might like to see them put their proven engineering ability into an ADC, the work needed to get a foothold into that market probably would never pay off.
What we can say is that DSP based EQ for headphone use is a market awaiting tapping. Although it needs to be done in the right way. Exactly what that way is isn't fully clear. There is so much ignorance in the audio community that you are guaranteed to get vitriolic kick back from some quarters no matter what you do. Just getting the science right isn't going to be enough. Like I wrote above, the user experience is going to be key. And that is really hard. One only needs to read this thread to see that there is at least one opinion on the requirements per person. I have my own ideas, but I have been in the game long enough to know how much value they have (not much).
What I do hope is that any DSP based product provide a portal to access the underpinning raw parameters (say a set of bi-quads) so that enthusiasts can bend it to our will. But that isn't going to be the main game for a company like Topping, they clearly have bigger plans for market share.
The other space to operate involves licensing various proprietary systems. Apple/Dolby for Atmos encoded space for instance. Those are shark infested waters. If Topping wants to get big in consumer space, they may have no choice but to go this direction. But it would be easy to lose a lot of money very quickly here.
Dunno. Topping are not Sony. They may however desire to be so one day.