This is my area of expertise. Without eg4 explaining their security practices, we don't know.
IMO it's better to detach from the cloud and monitor/manage locally, but I realize this isn't everyone's skill set.
Btw I would say the same about any cloud based control plane, especially in this niche space.
On the other hand, hackers have very little to gain from doing so and I doubt would bother. EG4 likely does not have very deep pockets so ransomware is a bad idea, cryptojacking might be more likely.