Thanks a lot for the comment!
Yes, we plan to release the game on steam once the development is finished!
Towards the combat, we overhauled the combat so far 4 times, but the biggest overhaul we did in the version 5.2.0.
Our goal was to make the combat faster and less difficult overall. We are still working on the combat, we plan to make another pass in the background while keep releasing content, and once the overhaul is ready we will merge the builds together.
The two bosses you are referring to where completely changed, pretty much all the A.I of the enemies have been completely overhauled.
You can read more about it here if you'd like:
https://www.patreon.com/posts/combat-tactics-72100346