Response #1: The OKW rocket artillery requires more micro to be effective due to how it works that's what makes it unique. Good micro will ensure you get good hits along the line in which you are firing it. The mice consuming is a given. Its harder to use but has the most consistently amongst all of the rocket artillery which is more unpredictable in nature of their design.
I specifically don't agree with the highlighted fragment. I think it used to be like that in the past when the unit was overperforming.
Its a creeping barrage and will follow the path you assign to it. If you want the katushya and werfer to be more accurate you will need to get closer to get a more accurate shot similar to the stuka. This seems more like a learn to play issue than anything else. Also, remember there Katushya at VET 1 has a similar creeping barrage effect which is rather lackluster compared to the Stuka and should receive some attention compared to the Stuka in my opinion.
You are wrong again. Katusha can pretty much freely bombard retreat points and score a lot of kills max range. It is especially easy as it denies the area for a few good seconds and the player does not need to time it that well. With stuka you not only have to time it better but also predict where the rockets forming the line will be after time spaces between them as they don't fall at the same time but create a line with delays between them. Much more difficult to use effectively. Also the Stuka has lower range than katusha.
Response Regarding OKW Playtime: Just because I haven't played it in a month does not mean I have forgotten how it functions. The Stuka still functions similarly to how it did when it first came out the only difference being is that the damage output has been altered over time due to the nature of balance. Also, there haven't been any major balance changes to the Stuka in particular in the past month making any difference than it was when I last played it. In addition, consider that you could always mess around with the rocket arty and etc in offline custom matches with Ai which I like to do from time to time that will not show up in the leaderboards because it's not a ranked match.You present nothing more than a strawman in this situation.
I am against people not playing the faction discussing such factions balance. I believe you should only be allowed to comment stuff like this only if you have a roughly similar number of games with all factions. I believe you are simply wrong here.