Yes vacuum packed beetroot is good for you and according to studies the vacuum packed beetroot is even better for you and your health than fresh beetroot.
The vacuum packed beetroot contains about 70 percent more vitamins, minerals and nutrients than fresh beetroot contains.
So yes eating vacuum packed beetroot is healthy for you and supposedly much more healthy for you than fresh non vacuum packed beetroot is.
Still fresh beetroot is very healthy for you as well and I prefer the fresh beetroot myself but do occasionally eat some vacuum packed beetroot as well.
I find both delicious however the fresh beetroot to me is much tastier than vacuum packed beetroot.