I can totally understand why you have this doubts. I mean now the assistants are not really smart. A study shows that the google assistant has an IQ of an 5 year old child.
I mean these assistants are not really smart and not helpful but with the work which Anker(Eufy/Zolo), Amazon, Google are doing they improve the products. Because of course use Amazon the cloud with machine learning to analyze the process.
I will not buy an Eufy genie in the next time because it is the first version but I think that in 3-4 years every speaker has an smart assistant which is than really smart.
But for now it is more like a toy and add-ons like smart light bulbs are expensive.