Installers are driven by fast easy installs but they are also very concerned about service calls. Most will stick with equipment that gives them the least amount of headaches or none at all.
Plus, with micro inverters, the wiring being 95% AC, any basic electrician can wire it vs a bunch of HV DC stuff that can scare someone off.
I've had to make zero support calls in the year-ish that I've had my 7.5kW grid tied Chilicon microinverter based array.