I think the frozen edge enhancement can be 1d3/4/6, but should get boosted by spellpower (much like the sonic swash can) and fits with the bard applying spellpower buffs to their attacks.
The speed boosts for running do nothing to make bards faster than any other combination out there. Bard using warchanter and swash speed as well as sprint boost was as fast as propulsion boots and wings combined. Both can make a market dash from the guild airship tower to the gate for the harbor in 13 seconds.
I do agree that the tacticals for bard should have their dc's boostable by tactical dc boosters. I know the concept is their dc's will be high out of the gate, so I can understand the exclusion at the moment. I will get some runs with average dc's and see what it does for epic content and heroic (no destinies and level 8-20 quests).
I also think the cleave should count as a cleave for legendary dreadnaught purposes.