It’s by design so people buy more lights. It could be made to function better and last way way longer (theocratically forever by a human’s standards).

But then the quarterly line won’t go up high enough, so it’s “bad for business”.

Like someone else commented, even the bad ones can be made to at least be slightly better with small adjustments to the circuit, but then 2 people out of 8 billions around the world would be reluctant to buy the extra luxury package on their third super yacht. So obviously it’s not worth it (╯°□°）╯︵ ┻━┻