Well then if it wouldn't be worth it for you, you could choose not to select it.

Eh...

7 movement is pretty easy.  Start with tracking and adventurer, that's 4.  Get a horse, and 2 other movement increasing items, that's 7.

3.5 gives you a 4 move army then, something you'd need to spend vast amounts of resources on equipping them all with two movement boosting items.

That said, base two movement in a 4x with tactical combat is horrific.  6-8 would be a much better base range.

And for those who want to make a new sovereign?

I already suggested changing Organised to letting a stack move at the average speed of all it's units.
That's a quite literal way of seeing it.
Worth maybe 4-5 sovereign pick points.

It would let the stack move at "reasonable" speed without a single slow unit killing the speed completely.
You want fast units? You create fast units, using horses, traveller boots... the works. It would not be free.
But it would also avoid insanity like moving a whole stack of golems at speed 7+ at no cost whatsoever.