Skills: Rework Bolster Attack

[Goliath]

Bolster Attack feels very subpar to its alternatives in any Paladin exit (except for Seraph's thrown and firearms innates).
HC and Seraph get bigger supplemental bonuses, while EH can use Fires of War for 1 less damage and 1 AP/7 MP less cost.

Could Bolster Attack instead grant 2 Holy supplemental damage + 2 bonus supplemental damage (to any supplemental source, so it increases T3 effects)?

[Fellis]

comparing T2 skills to T3 skills and saying they are weaker is a bit obvious, also supplementals are being looked