What rubbish. It doesn't matter where you get your licence, it's what you do to learn your trade after you get it.
I don't know anything about the schools in Jandakot but in my experience the larger schools that claim to be 'Airline training specialists' treat you as just another number. The smaller are ones much more friendly and treat you well.
And yes a tail wheel aircraft will teach how to fly stick and rudder.
Go for the decathlon. RACWA sound like a bunch of tossas, and there are way too many of those in this industry