tumti I did say generally 🙂 Another possibility is the use of a magic item that extends dispel range.
I don't think we'll be overwhelmed by Wizards using Reserve Move to thwart our dispel range. If someone is taking multiple Wizards, especially Lord-level Wizards, then any army would probably struggle to deal with it. and if the enemy Wizard wants to skirt the gap between cast and dispel range, good luck to them - it won't be easy to pull that off and maintain their full efficacy.
I don't think these are issues that affect Dwarfs significantly more than other armies.
It certainly would be better if we could plant a Level 4 Dispeller in the middle of the board, I think it's insane that we spend so many points for a Level 2 Dispeller, and that Dwarfs are so poor at dispelling in general - but it's not going to be perfect for anyone - even just considering that you can't dispel while in combat makes placement difficult.