Unless you're basing this on Big Bash and Ryobi Cup, which is the only chance you'd have to play argument ad Dickinson in terms of watching him on TV. Which, in terms of releasing pressure with big shots, has no relevance to FC cricket. At all.
Rogers can be pinned down like any batsman, but the advantage of his age is that he has the maturity to not get out with a stupid shot when he's pinned down. Remember what Murali Vijay and Pujara did at Hyderabad on day 2? How they rode through Siddle and Patto's early hostility and only started to dominate in the third session with an older ball and tired bowlers? Rogers is the closest we have to a batsman with the discipline to do that, and he deserves a chance to prove it.
There's plenty of firepower x-factor game-changers in the line-up if you want to put up 250 scores at 4 rpo. I haven't found any good reason to expect more of Warner, Hughes, Watson, Wade and Haddin.