The issue raised by the people replying is mainly that the macro is for damage spells (2 spells specifically) in order to not loose damage the replys basically advise not to macros these 2 specific abilities but use them normally (and in a few days we will only have 1 of these left anyway). They are offering advice.
I'm not sure where anyone has specifically mentioned your use of macro's.
I myself also use MO macros for some single target GCD healing abilities as I am more accustomed to MO healing from other MMOs and when I have tried without I have not adjusted as quickly as I have liked and have just gone back to using MO. Cards as AST are the main thing I do not use MO for though to be able to weave around malefic without biting into the next GCD.
Typically though I find the MO GCD heals I have are rarely used outside of Regen/Asp. Ben/Adlo.