Not at all a Fairytale England bowlers in the UK are experts at late swing in and out and that's without cloud cover and green tops morning dew Duke ball day night matches etc stats show in more recent times Aussie Backfoot batters in tests in the UK weren't that great.
And you never know jimmy could still be around hoop the ball around corners.
Can't wait for 2019 Ashes series.
I think you are grasping at straws here.. The main players left from the last series is Warner, Smith, Starc & Lyon. Hazlewood was inexperienced back then and is a far better bowler now. Mitch Marsh was there.. He wasn’t great with the bat but averaged 18 with the ball dismissing both Root and Stokes ( Stokes twice)
Are you forgetting how close the last series was?
1st Test - England by 169 runs
2nd Test - Australia by 405 runs
3rd Test - England by 8 wickets
4th Test - England by an innings and 8 runs
5th Test - Australia by 46 runs
Compare apples with apples these are 2 different sides and at the moment one is better than the other.... 2 years times it could be different again