No. Combos belong in hack n slash games or so-called RPGs like Fable... not in Elder Scrolls games.
You could say the same thing about movie-like finishers. TES is a becoming more of a hybrid between a hack-and-slash and RPG. Since combos could actually add depth and fun to the combat, unlike the "cool finishing moves", I think that they're a good thing to add to the game. It's even possible to make it so that you can only use certain combos when you've chosen the perk or achieved a certain set of prerequisites. In this sense, they could actually add to the RPG experience rather than detract from it.
tl;dr: Combos can be done right and TES is already part hack-and-slash.