Brake Fluid Leak problems of the 2012 Toyota RAV4

I am filing a complaint about spongy brakes behavior in a 2012 Toyota Rav4. The problem I was experiencing were the brake pedal traveling to the floor and reduced stopping power during application. The spongy behavior of the brake pedal was also present with engine off. I report this event to two separate Toyota dealerships which technicians claimed this is a normal function and this is a soft pedal design (according to the first dealership). The second dealership showed me another similar vehicle (2011 Toyota Rav4) and it almost did the same thing (engine off - pedal was still spongy but was less than my vehicle). Since being a ase master technician before becoming an mechanical engineer, I bleed the brakes which only helped a little and there were no fluid leaks. Finally, I researched that the abs pump might need to be activated using a scanner to cycle the actuators that might hold air trapped inside. I took the car to my previous place on employment where I consulted this issue with the shop manager in which he agreed that this is a possibility. The shop manager performed the abs pump cycling process with the scanner and the brake pedal became hard and firm like it suppose to be (procedure time: 5 minutes!). I am very disappointed with Toyota trained technicians and any good technician knows there is no such thing as soft pedal design especially with a vacuum brake booster with engine off (hydraulic fluid is only slightly compressible!). Only vehicles with hydraulic brake booster can experience a brake pedal feeling spongy since the booster will continue to function after engine had been turned off (approx:10 ¿ 20 brake pedal applications ¿ diesel & very few gas vehicles). It seems to me Toyota is skipping a step in there manufacturing process.