...These have a very high level of severe flicker at 100Hz..but there are no complaints about them.
There are a lot of complaints about them.
I have complained about them, and I'm not too sensitive to flicker.
Everybody complains about them all the freaking time.
Had one in a hacklab toilet and it was there only for a few days before it was replaced. No one could stand it - even if only exposed for it for short times. It was a great discussion starter really.
BTW, they are not all equal, either!
But if you decide to go "LA LA LA!! NOT LISTENING", then I guess there are no complaints about them, for you.
Yes, crap electronics is being produced and sold around the world in multi-millions. No, it's not a good excuse to design more crap. Especially if you are not targeting the $1-$2 segment!
Also, designing cheap crap is more difficult than you think. If you go
too low, you'll hit problems soon. Your attitude is not going to work here. You need competency - the idea of the cheap crap is that you
can spend money on R&D because they'll be sold in millions. Some $1 product may have $10000 extra engineering cost went in just to reduce the unit price by a few cents!