In order a great idea to be distinguish from the the rubbish, a lot more efforts are needed today, compared with a few years ago, in my opinion.

I presume that's where the insecurity comes from.

I come from a background of hardware design, where things have to work before they can be released, because updating after the fact is really expensive. Despite this, every processor released for decades has been designed using AI tools. At the nanometer level, there's far too much quantum physics involved for any human to keep track of, so instead the manufacturing processes undergoes a whole bunch of tests to characterize all of the limits, so an AI can figure out where to put all of the gates and where to route their connections, within the physical capabilities of the manufacturing process.

Testing is a big part of hardware design, and automating a design isn't possible without also automating the testing. Hardware engineers don't mock each other for using automated tools on complex designs, they mock each other when a test isn't set up properly so the automation fails or when design is simple enough to do buy hand, but instead someone spends more time setting up the automation than it would take to do it manually.