It's not a realistic point of view though. ...SNIP....
sure it is. The same argument is had any time a new console comes out. Where microsoft is fighting for your to be able to play all your old games on your current xbox instead of buying them again, Sony is wanting you to pay twice for the upgrade to the new playstation. Even the newest Xbox Series X can play games back to the original Xbox if you own the game digitally. In fact, a lot of old games get special upgrades for free when you run them on a newer system. Look at Red Dead Redemption. It will play off the original Xbox 360 disc, but has a 4K update applied. No one had to buy that game again and it runs on a completely different platform!
The point is that Taleworlds and a LOT of other devs provide DRM free copies of their games to anyone who has bought their game on one platform or another. Look at the Humble store, Itch, or IndieGala! several games sold there include a steam key as well as a downloadable drm free installer right in the same purchase. Metro Exodus even includes a Steam key and an Epic key in the same purchase!
It's not unrealistic to ask a dev to continue what they had already done for their old games with their current one, ESPECIALLY when they already have a DRM free build available.
I'm not asking for something for nothing here. I purchased the game, and they got the compensation for their work. What difference does it make to them how I play it?