As for the actual question, yes I want some control, but it has to be an effect of the spell and only usable with high skill in the magic, like an expert or maybe master perk. The main things I was thinking of were being able to detonate a spell or speed it up. In order to do either of these it would have to be built into the specific spell, and the magicka cost it adds would only be activated when this remote-effect was activated. For instance when you make your custom fireball spell, you put in the remote effect of detonate in 20ft. Then when you detonate this spell after casting it more magicka is drained from you, and the fireball explodes into a 20ft area spell.
As for the "flaming dragon" controversy I don't think he meant an actual dragon but just flame in the shape of a dragon (but still just fire) similar to the fireworks that turned into a dragon in Fellowship of the Ring (one more LotR parallel cant hurt). It was mentioned that this would be pointless as it is just unnecessarily flashy, but the flashy nature of it is why it has a purpose. If someone was able to bend fire into this dragon shape then they would stroll around the arcane university showing it off to all the apprentices. And what if this person is surrounded by a dozen goblins and faced with certain death. He can't demoralize them because he isn't good with illusion, he cant teleport away because he isn't good at that either (or it just isn't in the game
) So out of desperation he does the one thing he's the best at, his crazy dragon-imitating fire spell that isn't nearly powerful enough to kill the goblins.... but the spell is so crazy intimidating that the dumb goblins go OH [censored]!!! and run for their lives and he is saved.