I'd tell you to read #5, but you've already been penalized once for consecutive posting. So instead, I'll just keep doubling the points until you decide to follow the rules or you get enough infractions for a ban.
But I assume this would only involve Fol/HL cause Beacon of light will follow our recent "joint discovery" of AoEHoT's (or what should we name those ). The AoEHoT coefficient follows the 1.89 rule rather than the 2.33 rule which you guys are so fond of. But, it normal that one healing class follows more than one coefficient, compare druid which uses AoEHoT, HoT, AoE, Standard heal and Hybrid coefficiencies.
Would be a strange "curve" in blizzard policy however to give one type of spells more than one coefficiency. By this I mean that for Druid's regrowth the calculations work with 1.89 coefficiency rather than with the 2.33. Would be interesting to see if there are other similar cases where same type of spells have different coefficiencies.
Anyway, its possible to say that Blizzard broke the coefficiencies already at start when they built different mechanism for dps and healers for Wotlk. Therefore its possible to think that there might be more as radical changes to coefficiences.