I know, this has came about because in its early years it was a problem that got ignored, they waited until it got too popular to try and do something about it.
There is also that downloading copyrighted material without the licence to view it is not illegal, its the distribution that's illegal, which in itself limits what can be done about it.
My view is tho that moving forward they should adapt, and also accept that piracy happens, another thing to add to what you said about pre internet years, I remember when I was a paperboy collecting papers from the video shop, the owner had several video copying machines running in the background making pirated movies to sell. Piracy has always been around, just in different ways. To reduce piracy to 0% is a unattainable target, and if they not careful they lose the ability to monitor it as it will just go more undergound like the old years.
All they need to do is try to kill the reasons for people to pirate instead of buying.
Release worldwide at same date.
Make it available for online viewing same date as cinema and physical media.
Netflix had the right idea, but greed wrecked it, if netflix had every movie ever released for its 6.99 price it would absolutely murder piracy rates, but it isnt to be, movies keep been pulled because the copyight holders cannot get netflix to pay inflated costs, and the liks of sky movies want exclusivity meaning whats on sky movies cannot also be on netflix. Not to also mention the regional restrictions, e.g. a usa netflix account having 3x the content of a uk netflix account.