no problem at all guys, mod the crap out of it and make it work for you, seems like everyone has their own tweaks they like to see with stuff to make it their own and all that 
and about the starfall, i dont use it on the macro as i tend to cast it myself either before or after using convoke the spirits as its a huge astral builder.
The main reason i didnt do anything more complex with shift/alt/ctrl etc is because i personally use 3 hotkey bar rows at the bottom of my screen with them hotkeyed for no mod, shift, and ctrl, so alt is really the only way i can have a modifier on any macro i run, but especially with how simple of a macro it really is, it shouldnt be any issue to change about anything you like to how you want it
it was my first attempt at making a macro on GSE, and has been years since ive messed with the macro system, so any insight/knowledge/critique is welcome as long as its contructive and whatnot xD
oh, and thats not the full version of the macro i use, i also have it cast a few more buffs as well as use an active skill on a trinket i use to DPS, so its def able to be modified, the main thing for me is just having a 1 click macro that i dont have to worry about the wrong spell going off at the wrong time etc
and PLEASE, for the LOVE OF NATURE, you guys should all consider looking into making some macros for us balance druids as well, because an arms warrior isnt gonna figure out how to cast our magic just right, its gotta be us to do it <3