Perhaps have a houserule that allows characters to extend the area of influence. A number of options could be available:
1) Extend but lose 2 EP (or WP depending on the power) for each multiple (eg, 2 EP/WP for x2, 4 EP/WP for x3, 6 EP/WP for x4, etc) the range is increased by.
2) No EP/WP loss but only allow for the extension of a power's range based upon the rank of the PC.