It is? Why didn't someone tell me????

No, it's not a full reboot. It's following standard mythological tropes of the next generation having to face down evil, as evil is only defeated "for a time."
Calling it a reboot pretty much ignores the whole film and is a very surface-level criticism.
But, even if you treat it as a full reboot then where is the harm in enjoying (or ignoring) the ST? At this point, all the complaining about the ST is for the sake of complaining. There is enough variety of SW out there for everyone. Let's not rip this one apart just because it doesn't work for everyone.
Or, shall I go in to the Mandalorian thread and tear it apart. Because, that's where we are at,