Because make is dog shit if you need to intertwine make with bash. You have to remember various escaping rules (double $$ signs or not depending on whether you

Because make is dog shit if you need to intertwine make with bash. You have to remember various escaping rules (double $$ signs or not depending on whether you want to refer to a make variable or interpolate a bash variable), tabs instead of spaces that new devs often (quite rightly) get tripped up by, and various other idiosyncracies you can waste hours on.