Not really, J* tapped a previously untapped market and quickly added capacity to get the critical mass required for profit.
Rubbish! They were handed an instant market share. They stepped into numerous destinations from which Qantas were withdrawn (e.g. OOL). Instant 60-80% market share and instant profitability. Other places like HBA saw a substantial withdrawal by Qantas and again; instant market share.
Had they had to build their own market share, they would have occurred years and years of losses; just like Tiger.