I don't have a license so I don't saw the alpha but it's seems frustrating that in 5 years of "development" so little was added. But, OTOH, it's not the final version.
That doesn't change much.
Either it will be released soon, so not much will be added in the final version,
or
we wait for more stuff to be added before it's released in another 2-5 years, making it totally pointless as of now.
(And given that it's not like the previous 5 years were well spent, we already know how this will go...)