The biggest issue with increasing the range and why I disagree extending any further is especially now that hitboxes are generally smaller again, there will be times you NEED to break the tether or it defeats the purpose as it can cause a worse chain reaction of death and chaos.

At the current range it is more than sufficient to allow control of breaking the tether when needed and still be able to remain max melee when needed to break it.

If the intended target is not in range of cover, by simply a couple of steps towards them, then that is on that party member in future to be closer when needed, not a need to increase the range.