I hope they finish it. I’ve read all the books and the series does do it justice even if there are some modifications for television.Yes, I believe it was cancelled because of budget vs. eyeballs. It was an expensive series with all the effects and sets. Plus it was a good stopping point given what happens in book 7. It's just the show runner wanted 8-10 episodes to finish the arc and Amazon only wanted to give them 6. So I don't think was stopped due to the allegation against Anvar. They did an in depth investigation of his actions and didn't find any issues with anyone other than him. Alex was out after season 5 wrapped and they went back in to film the needed scenes. And it was before season 6 began filming.
I don't know if you've read the books. I didn't but I jumped into book 7and am now about 1/3 of the way it. Very enlightening and lots of good explanation about old Proto and Laconia and Duarte. They didn't really get into all that, from what I understand, in book 6 as they concentrated on finishing up the war with the Free Navy.
I agree Amazon got cheap for some reason and could have let them go at least 8 episodes to finish the series. Maybe one day they will go back and finish the remaining trilogy .
I think however the large time gap after the last series might be a continuity issue though. Laconia needs time to develop.