Hobson's pre-race concerns about the heavy ground over an extended two and a half miles proved correct and Dame Rose was pulled up by Harry Skelton when she lost touch before the third-last flight.
Her run was in stark contrast to her previous race, also at Newbury, when she made all over two miles to land a Listed contest.
"I was looking for excuses not to run her the last day when I walked the course for the best ground," said the Stow-On-The Wold handler.
"I said to Harry on the day if she wasn't going, pull her up and save her another day, which he did.
"She'll have loads of entries at the end of the month. She's back to being in great order after a nice little break.
"Dame Rose is a good-ground horse and at Newbury last time it was heavy and it was the wrong trip for her at this stage of her career.
"We couldn't have ticked more boxes for being in the wrong race."
Hobson believes he has a good team of horses to go to war with in the spring.
"It wasn't easy over the Christmas period, but hopefully the horses are in form at the moment." he said.
"We've got some nice-ground horses here so hopefully springtime will be when we shine."
Select any odd to add a bet