What some see as "accumulated continuity baggage" others see as "a rich history".
But they're not the target audience. A new Trek series needs to appeal to a new generation, to people who aren't already fans. Nobody's saying you're wrong to enjoy Trek's rich history; I enjoy it too. But it's not just about you or me. Fandom isn't a zero-sum game. Adding something fresh to appeal to new fans doesn't take anything away from the old fans.
Besides, a reboot can certainly honor a series's history, by incorporating new versions of its iconic characters, ideas, and stories. Look at how many of the Marvel movies and DC television series use storylines adapted from classic comic tales. Or how Sherlock and Elementary both do episodes inspired by stories from the Doyle canon.