Well... I would share my thoughts as a person who knows the game mechanics well, tried it on all difficulties, and even got a no-loss win on impossible with a mage.
Reloads penalty will hurt everyone seriously. There are people who struggle even on lower difficulties and replay some battles 10 times. Imagine what kind of score they will get in the end.
As for kiting guards, that has been discussed. Approach from 90 degrees, if the enemy moves, pause and quicksave. It is both a tool and last resort option. Let us not forget that this is an option to make a diverse game - otherwise every replay will be the same, with the same units, the same way. If you feel like this is improper, simply don't do it
That post also makes me fall back to a statement I made some time ago: people really enjoy finding bugs and game discrepancies rather than analyzing the game, seeing what and when can be done, adapt their game strategy. Why taking away obvious paths of advancement? Why make the game completely based on human units, when you can start with demons, elves, dwarves, lizards, orcs or undead? That would seriously hurt the replayability, don't you think?
If there is an ironman mode, I will enjoy it, personally. However, the game is fun and fine as it is - it is much more challenging than KBTL, and requires much more strategic thinking.