Names like the Gabba, MCG, SCG and Adelaide Oval are held onto precisely because of their century + year old traditions. Perth Stadium has no such tradition to uphold and protect from commercialisation. Perth Oval has a greater tradition - even though it too sold out some years ago. And Melbourne Park also isnt comparable - wasnt built until 1988 (as Flinders Park).
Exactly, tradition has no part in the naming decision of Perth Stadium, strange you raised it.