"It's like TOS!" No, it's not. Other than some visual cues, the two shows could not be more dissimilar.
TOS is what got me into Star Trek, and it remains my favourite series. I can say without a doubt that Strange New Worlds feels a lot like TOS.
There's a strong sense of fun and adventure, and the show doesn't take itself too seriously, just like TOS. But it can also quickly pivot into something far more poignant, much like TOS.
Even more importantly, the characters feel like actual people, as they did in The OriginalSeries. You can believe they're genuinely friends outside of their official duties. They showed honest, human emotions and don't carry that TNG era feeling of perfection.
It's refreshing to have relatable characters again.
You only like it because it's the Flavor the Month.
The show is already 3 years old and seemingly still popular. I think we've moved beyond being a "flavour of the month."
Plus, i find it somewhat insulting that you assume people only like something because it's new and not because it's a genuinely well made series that can and does appeal to long time fans of the franchise.
The fact that it's as popular as it is, does seem to ruffle the feathers of certain parts of the fandom.