Probably to hide poor numbers for the EQS variants.
But also because the i7 and 7er are both one model, so unless BMW provides numbers on unit sales for ICE or BEV variants independently, they can't separate them.
The information is from the KBA release, it's easy to separate BEV 7 series from PHEV, MHEV 7-series. It's not possible from that info to separate EQS from EQS SUV, though it is possible to separate EQS in general from S-Class.
Given that there is no electric S-Class even adding in the EQS is weak sauce... it's just a **** infographic really. From an ex-member no less.