I find that most of the modern adventure game puzzles, are just cliched renditions of puzzles found in older games... Most of the BTTF puzzles for example were a mix of assorted overused Lucasarts 'puzzle' types...
True, but the newer generations know nothing of our generation. Hence, they're "innovative" puzzles, to the newbies.

In reality, it's all 'reheated leftovers,' but the new players didn't join in the first 'meal,' so to speak.