"Modern" bikes definitely need the appropriate cockpit set up to make the most of the handling; shorter stem and wider bars, and subsequently the bike needs to be the right fit to allow that to happen. [obviously] they also require a different riding style, and while your new 5010 may not have Pole/Nicolai type numbers it will feel different and will take some getting used to.
Despite what some people still seem to proclaim, modern geo with longer front end an steeper STA actually puts the rider in a better position for climbing, especially on steeper grades, as the weight is further forward and centred between the axles rather than hanging out over the back end as with the classic ≤73* STA + setback post type set up. Yes longer wheelbase and slacker HTA mean tight switchbacks require more effort/input/skill, that's the trade off. It often amuses me that those who are always quick to point this out, as though it is an insurmountable problem, are also often those who bag the same bikes for making trails "too easy".