Well it wasn't a bad ending glad to see no one that I liked died for the sake of sympathy, but there are a few things about the series and the final episode that I don't understand.
Were the ring entities an ex machina to end Anaros quickly, or is there something more important to them.
No, they're pretty important to what comes next. Duarte wants them dead, "I've got Gods to kill".
When the Mars Army lady went on a suicide mission to blow up the rail gun, why was she able to with stand armor piecing rounds.
She's got her Martian recon armour on. Basically turns her into a space marine with augmented strength and much better protection.
Why did we get half a story about alien dogs for no reason.
I suspect they're hoping the series will get picked up again because there's more story to come. If not you can always pickup the books which kicks on from where the series ends.
Is filip just floating in space?
No, that was a self contained little ship. Think it might have been the skiff they were using for repairs a few episodes back.
Seems like this has ended the current story but left enough open for someone to pick up where it left of.