Okay, I understand your points here, and I will address all, because there is a tiny detail to address at the end ;p
1. Not everyone runs healers, and the ignition is already strong enough, so I would personally leave it as it is.
2. While I can see what you mean with this suggestion, it is something that wouldn't be easily managed. Having an "exception" to debuff reflect would mean it has to have some special rules applied for it, and I personally don't see it coming for just 1 ninja. Besides, kotamatsukami is possible to be countered ;p It's just a bit of anime/manga lore, but Mifune was once afflicted with Kotoamatsukami by Danzo, and he just snapped out of it when he was told that he is under the genjutsu (at least, that's for what I can remember from the anime).
And last thing, it's unrelated to the suggestion itself but your ending to the suggestion. Please refrain from sharing info "Masashi Kishimoto himself said that Itachi could beat Madara", without any confirmation of such an information, which is in fact untrue. It's a wild rumor made by fans, that got out of hand. A true statement of Masashi Kishimoto would be "I have no clue * off Madara", before Kaguya was introduced. Just a hint from me, to limit the spreading of false info in the fandom.
And, as usual, even though I personally find this suggestion very unlikely to be implemented, I will let the team know about it.
Thanks for the time you took to suggest it, it's appreciated that you want to make game better ;) If you think of anything else in the future, don't hestitate to suggest it as well ;p
Have a nice day ^^