Let’s suppose this scrambling change is implemented - what about webbing? Why would a tiny little frigate web a huge battleship? Game would have to change a lot to make all this reasonable.
Suggestion: all modules are the same, you can set power level of the module. Low power level (say 1 grid, 30 CPU web) = weak effect, say 30% webbing at 5km. Increase it to 100 grid, 45 CPU and more cap = stronger webbing, longer range, perhaps 45%, 8km. High power level of 1k grid and 60 CPU would be webbing for 55%, 10km. Capitals would push it one notch higher and web for same 55% but at 25km. (power level is chosen during fitting and you could still have low power level on the BS if you wanted). Ceptors and AFs would get nice bonuses to lowering grid/CPU needed for webs so they would operate stuff at cruiser level easily and at BS level with some fitting adaptations.
Regarding scrambling, that suggestion is fine, I would just pair scrams/points with the suggestion regarding power of modules - a BS scram would keep a BS in place.
Though here I would be more in favor to have “when ship received 5% total HP damage in a second, it cannot warp”. Justify by something like “ship diverted all its warp/jump power to handle sticky situation and cannot warp” or whatever. I feel this is neat as it doesn’t give any arbitrary points to larger ships yet makes them harder to tackle. Also, it would be a single number to tweak - put it at 1%, 3%, 5%, 10%… for all ships.
Say a frig with 2k HP would require a single shot doing 100 HP to be unable to warp for a second, while receiving say 1k damage in a single shot would keep it there for 10s. Damage is considered pre-resists and percentages are relative to unfitted ship HP. First part balances shield with armor tank, second takes care of plates).
WCS would raise the damage cap required, while scrams would lower it - perhaps 5*(WCS + 1) / (points + 1) damage per second to prevent warping. A frig with 1 WCS being hit by the same 1k damage would be there for 5s. (also, make bubbles have 1-2 points. While a frigate keeping a battleship in place might be strange, a flimsy bubble keeping a titan in place is even stranger)