Obviously they're a company that is responsible to their shareholders for turning a profit, but how they do it is important. How many Android phones are supported by their latest update? Not even close to the number of iPhones. So even though iOS 11 was ROUGH (nobody is arguing that), I think Apple deserves credit for their approach. I'm not saying they're perfect, but I much prefer them over any of the other companies out there.
Yep they aren't well supported, because as I said before, Samsung & Co. does not have an AppStore, just Google has a App Store(aka PlayStore), and original Google devices are well supported. Releasing Updates has no monetary benefit for Samsung & Co., because they earn money mainly with their hardware sales, thats also the reason why they release uncountable phone models during the year.
In other words, Apples long term iOS support is not because they want to do you a favour.
And at the same time they limit new main iOS features to newer devices to "slowly" psychologically force you to buy a newer one later. Again, it's just a tactical marketing.
But we are getting off topic, better stop and keep iOS12 beta4 thread