Thanks captain obvious. What he did is also not an eye for an eye.

And here is the problem with your statement. You are going off of one city, which had 4 of those powerhouses at one time, that we know of, 5 if you really count the dragon as part of it. That's 1:12,000 which is about 0.00008%, not even gacha players would pull on those odds. And even with the numbers you said, 40,000 to 500,000,000 is a massive difference, do you even understand how big 500m is compared to 40k? Even you said it "god smacking powerhouses that could ruin the world should they so please." Is this not a chat ability? If they had the ability to ruin the world, is it not a chat ability? You are so lost in the sauce, trying to say someone's ability isn't rare that you forgot that the argument is about if it's a cheat or not.

Always has been. Since the very start

Who is this girl. We don't know her.

Oh so 1:12,000 is so common that it should be considered a normal power? And it's theoretical, we don't know how often power of this level is given out or in this case, transferred. We can go to the next city and find out there is only 1 or we can find out there are 10. But even a 1:6,000 is kinda rare.

This is more like an eye for an entire bloodline

The elden beast

How zonked out is he?

Wtf is going on

They got lost in the sauce

That's how these things normally go. A "regular" person gets isekaied and they somehow turns into a battle hardened adventurer who has no problems killing. It's what the edgelords want, but in my opinion makes a boring story. At least show how they change.

We might find the one piece before we find the end of this date.

Who?

You named a trio and the thing they sealed up, that's four entities plus the dragon, that's 5. So you are saying 5 per city is enough to say it's not a cheat power? If you extrapolate to infinity, sure.
Now that trio plus the dragon is out of play, they can no longer compete with MC, making his power level more unique. Remember, I said, "...cheat ability is unique or at least extremely hard to obtain, which gives you a massive advantage over other people in one way or another."The intention of that was to say you get a massive advantage over others, as in if they where to fight or compete in some way. This does not include things that are removed from the picture already. Like the dragon or the trio you mentioned. And even if you include them in the narrative "present" as you said, that's still 4 per city as of this point in the story.

Why would a scope not work with it? Having a spotter and a scope is the best option.

Probably plot reasons.

But he is. He remembered everything from his past. Politics, physics, chemistry, architecture, agriculture, and more. He jumped from the medieval age to almost the modern age in a very short amount of time.

Hmmm. I sense that there might be a smidgen of complicated loved affair in the party. I can't get my finger on it but it's just a feeling.

Then let's switch the roles around and say he did that to a girl. Would that be the same?

NTR LETS GOOOOO