I agree. Not everyone liked Lauren on the original Hills run (or on Laguna Beach for that matter) but most people could relate to her. Not just on the milestones, like graduating high school, moving to a new city for school, starting her first professional job, etc- but the personal side. An unrequited crush that strings you along before ultimately always going back to his bad news (in your eyes) girlfriend? Trying to decide whether or not to take back a cheating boyfriend? Your boss at your first professional job always kind of giving you the side eye? Your best friend dating a jerk and the frustration that comes with always listening to her complain about him, knowing she's going back to him regardless? Meeting up with an ex to exchange stuff and feeling like you're taking this way harder than he is, even though you were the one to end it? Feeling like your colleague that you don't really like that much is the teacher's pet? The list goes on and on.
Although I was much less glamorous (I had an office job in Omaha at the time of the original Hills run) watching the first two seasons of The Hills was like watching my (much blonder, prettier, better dressed, and with a better ride) self on TV. (Ironically, I still liked Kristin much better on Laguna. If LC was a prettier and richer version of me, Kristin was who I actually would have liked to have been in high school).
This isn't a reboot. Not only is the central character missing, the theme is gone. At this point, the reboot's theme is "I either used to be kind of famous, or have a parent who was kind of famous and I need a paycheck". Which- actually isn't a bad theme. People love to see arrogant people humbled, villains face their comeuppance, and see the underdog make a comeback. This has the workings of a successful show, if packaged the right way. But they really missed the mark styling this as a reboot. It's essentially a "where are they now" stretched over multiple episodes. That even applies to Pam's kid- people are probably interested in him for whatever he can dish about his famous parents' shenanigans now.