These are BS apologist answers - and absolutely, totally wrong.
If Apple didn't envision use 'for heavy tasks', why provide Core Audio, Core Midi, AudioCopy and their own AudioBus system for multitasking apps on a signal chain?
No, sorry, Apple didn't just know, they DESIGNED that functionality into the iPad and iOS ... then crippled it.
It is the same as if they had released a laptop with a top-end graphics card, screaming quad-core i7 processor - in other words an absolute gaming monster - and then limited system RAM to 2GB without possibility of expansion. Games will run, but never up to the potential of the hardware, you will always be compromising features, and will deal with too many crashes.