I did my own install of a ground mount 6.7kW array. I initially declined to connect to the inverter manufacturer's monitoring, because I did not want my system hooked up to the internet.
Then, in the spring of 2024, the inverter failed (it was still under warranty). I was travelling at the time, but that may have made no difference at all. It took me a month to notice that generation had gone to zero.
Once I found out, and replaced the inverter, I chose to connect it not because the system requires it (it absolutely does not!), but so that the manufacturer would alert me in the future if a similar failure happened.
Ideally, I'd like to be able run a monitoring app locally, with no internet connection. For now, I'll take the remote monitoring despite my misgivings about it.