Yep of course, but realistically 95 % of people using the SBMS will use the DSSRs.
I suspect this is actually not the case (would be interesting to ask Dacian what the sales numbers are like though). Anecdotally there are a lot of people sold on the SBMS0, but not fully sold on Dacian's perspective on non-MPPT vs MPPT, and (acknowledging the super small sample size, and selection bias) my impression based on the systems, and planned systems, I've seen on this forum, Victron is the most popular type of SCC paired with the SBMS0. This impression could well be skewed.
I believe part or all of the reason that the current generation SBMS is separate semi-integrated components (SBMS0 + DSSR20) is because in previous generations (when the SBMS was truly a combo Charge controller + BMS in a single component) there was a lot of interest in a BMS only version.