Fab! Might be a while before I get the chance with a Growatt, as it'll be once an installer has fitted my dad's place (I'm building the same battery for him as mine, which has been working brilliantly with your code since it was commissioned last November)Should work, the pylontech option for enable/ disabled just changes some of the commands sent to the inverter, even disabled it's using a form of pylontech modbus to communicate.
So I'd definitely recommend trying.
If you have any issues let me know, after I've done the latest release with web and display support added (via an m5stack) then can look at what isn't working for you.