It's a valid point but I know for myself I hate seeing a lot of genre's lose their basic gameplay to become more action oriented (Survival horrors, RPGs) and action based games become ever more focused on a movie-like experience often at the cost of the basic gameplay. For example, I don't want a linear QTE Tomb Raider (not even for an hour) for the sake of character development. I don't need Lara to have a more realistic character, I want more puzzle/exploration. It's a game, not a movie, leave it as such. But I am vastly outvoted because games that leave their basic premise to cater to the biggest audience (Resident Evil) are handsomely rewarded.
I could argue that it seems today that there is a reduction of genres, and an increase blanding to the lowest common denominator, a mashing of things in the name of storytelling. It has increasely become more of interactive fiction and adventures, with increased dexerity elements, or adventure being mashed with action, and things dumbed down to pulling levers in certain order or hunting the key card. Action has assimilated adventure, outside of Indie stuff, and then you now see RPG also being assimilated. The stat building element of RPGs has been getting into about everything at this point.
So, you come out with large scaled budget blanding of genres, that are supposed to appeal to everyone, in the name of adventure.