If it was someone at Taleworlds who leaked it that's sad, Armagan should be able to trust his staff and one would think they would not go behind the team's back. But I wonder if this supposed interview, for which they had apparently sent screenshots to some game journalists, is the source of the leak.
As for the spear comments- to me the pose in the second screenshot, if that is what is being referred to, doesn't suggest an 'overhead' attack. Perhaps by overhead you mean above the shoulder? It would still be awkward without using an overhand grip. What's more, I think overhand grips are more realistic and more aesthetically pleasing. Longer polearms can't be used in that way but for 'normal' sized spears of 6-8 foot I think overhand is the more natural technique. Plus of course it creates a second way for a spearman to attack and therefore makes it harder for other infantry to defend against them.
Besides which, the position of the character's arm in the screenshot looks as if he could perform the customary M&B under arm thrust or lift it higher to thrust at shoulder height.
As for the screenshots, the game looks basically good but with inappropriate/lacking of lighting and other effects. I'm not shocked that the game can look shabby and unimpressive when these graphical touches aren't set properly, and nobody else should be. They don't benefit by spending time faffing about with settings to make it look pretty everytime they load up another scene or build; they are testing stuff, as can be seen from the text in those shots.