I see a lot of people complaining that CT is easier than coils so its not worth doing but is there a point of doing something that's harder than T5?

Lets say instead of giving us CT, they gave us coil 6-10 with each turn progressively harder than Twintania so people don't do anything 'easier'. It took BG 2.5 months to complete twintania, we can assume T6 would take them 3 months to complete and T7 would take them 3.5 month to complete etc, etc.

Is that what people want? Hammer their head on bosses for the next year over grinding newer but less powerful gear?