Ok, might be. But how possiblly would you wright it down so it would allow multiple levels per multiple limits? Think about Indominable quality. There are like 5 lines of text that sais especially each possible example of using it. That is up to rtg3 to any 3 limits,... And there are some Qualitis that are for multiple usage, or not, i.e. Adiction [for plenty of combinations] and Exceptional Aribute [that is only for one attribute].
Ok, so lets compare it to Improved [physical] Attribute. Practically same thing, does it have the "Once per inherent limit" clausule?