Actually no....it's not a go to retort....at least I don't believe it is. There are a few points I'd like to throw out there. I play him mid rather than top and I would argue that in mid it's a more dangerous position than top. Also a lot of mid champions have higher burst than when I play him.
Is he oppressive? Yes, once he gains a few levels sure he is. He can nuke someone really hard but killing someone in two rotations? No. His Q is on a 9 second or CD at 1 and a second or so less at level 2 which it would be at level three in your scenario. The damage isn't there and I build pure ap rune and masteries without spellvamp. From there he'll take either another Q or W to keep safe a bit but it's really not much stronger than an escape like leblanc, zed, root like lux or some other similar abilities. It's an escape. Sure it takes him out of the fight most of the time but it does cost health as well. Once he hits 6-9 he'll power spike and be a lot more aggressive and I agree it's at that point he's super frustrating to face. Before that though his Q is on a decent CD....and that's what I hope is pretty honest input.
As for the aggressive plays....I said I played aggressive against certain champions. If I don't they slaughter me and poke me down a lot more than I can them. I sincerely spent dozens and dozens of games playing him getting strategies down for different champions I face....since I go mid I take more magic resist to that lane in my masteries otherwise I honestly lose lane too hard too often....
For the laning phase response, yes I point to it because that's the easiest time to shut him down. If you shut his pre 6-9 down sufficiently he falls off pretty hard....but his escape in a team fight is limited to his pool and he's too slow of a champion to really escape from a bad fight with his pool. He's easy to catch out and with one or two players kill him....that's usually my biggest issue. If a fight goes south, I die.
I know as a vlad player you'll believe I'm heavily biased, and I know I am biased at least a little bit....I mean heck I've played hundreds of games with him....or at least a hundred lol. However, I honestly believe what I'm saying is fairly solid advice, and that he does have substantial weaknesses along with terrifying strengths. I've spent hours theorizing builds and stat gains and what they would mean in a game so I hope this isn't just written off.