Ok, so 75 tons. That's good, the 70 ton limit would've also cut out the Jagdtiger. Does the 80t Tortoise fit into the "acceptable" weight category? Does the up-armoured Char 2C? If it does, does the 95t T28? If so, can we really disqualify the O-I, at a mere 5 tons heavier?
The point is that these weight limits you've put down are fairly arbitrary, and dictated by operational requirements. The practicable weight limit is set by the operating conditions and role. No, for doing what we want of tanks nowadays, SHARM would be a really bad idea. For cracking open the Siegfried line, that weight limit jumps right up. It will be up to the player to judge whether they think these tanks are worth it or not; the fact that you will probably judge that they aren't in almost every case doesn't mean that others should be prevented from picking a different play style to you.
I didn't put down anything, I merely corrected something.
And yes, the Jagdtiger was absolutely inadequate in every way, which is why they didn't bother to produce more than 74 of them. It was barely able to move and broke down constantly because the engine and gear couldn't handle the weight. It wasted fuel in an unheard of fashion, couldn't travel over most bridges, used two-part ammunition, and the crew had to lock and unlock the gun everytime the tank was supposed to move, which meant that someone had to get out of the tank to do so. In short, crews absolutely hated it.
The only advantages were that the gun was extremely powerful and the front armor was virtually invincible. But those didn't make up for all its weaknesses. All the other tanks weren't really useful in that kind of setup either, so yes, all that still remains true.
What a player wants to do in a game has absolutely nothing to do with the discussion at hand, so I have no idea why you even bring it up. This was about the weight-classes that are still useful for a tank in reality, nothing else.
You are trying to turn the argument into something it hasn't been. It is not about one certain number, it is about a general guideline. There have been tanks up to a weight-class of around 70t that turned out to be useful, though clearly a lot of them weren't. Anything that went into a different weight-class above that (and no, as has been stated before, this is NOT about a very specific number of tons) was deemed to be entirely useless, which led to these kind of tanks being abandoned very quickly.