Reaching level 70 forces you into regular timeline?

I'm trying to get my gf to play with me and we were going through specific zones (everything that's druidic, currently going through Shadowlands to reach Ardenweald) but wanted to play it with appropriate scaling. We noticed tho, reaching max level immediately made us one shot mobs as we were forced into regular timeline and not even at Chromie could we reset it. Are we literally forced to buy her TWW(/Midnight because it's smarter) to get access back to Chromietime? It seems like it wants to force us into the TWW introductory quest lines even tho my gf doesn't even have TWW. Chromie doesn't have any options to choose from anymore, just a static text.