You are right, Victron is missing powerful hybrid inverters. The only hybrid inverter is the Multi RS 450 with 6kW. You can group 3 of them for a 3 phase system.
With the MP2 15k and announced 20k you can group 12 units building 180 kW / 240kW battery system, still many RS450 or other brand AC-PV inverters. With a new offgrid feature you can even have cooperating groups of MP2 15k and 20k working as an offgrid campus, like for hospitals in Africa.
Many people are looking for the HS19 a three phase 19kW hybrid inverter announced since two years.
The market for Victron is
- highly customizable
- DIY - you can change/adapt/integrate yourself
- offgrid (RV, boats, cabins)
If your main preference is simple installation (less boxes and cables) other brands will suit you better.
If you need to integrate certain components or have nearly no limits, Victron might be your choice.
With EG4 you cannot design 120kWh battery. Their top of line FlexxBOSS21 has up to 85kWh.
My BMS supports up to 16 batteries in a stack. Using EVE MB56 cells (628Ah) this would sum up around 650 kWh. There are other Victron compatible BMSs supporting even more batteries in a stack.
Maybe getting a ready assembled Victron system
In a container does suite more your needs…. Have a look at 
180kVA beast from Dracula land 🧛
Seriously , everbody needs to find his perfect match.