Going back to People magazine (not) being a reputable source, which is on topic for this thread...
I found this (admittedly from 2010) Gawker article about studying and rating the validity of tabloid gossip magazines in the US.
Which Tabloids Lie The Most
It says:
”America's biggest celebrity glossy, People, publishes so few unconfirmed rumors—and instead relies on scoops that have been spoon-fed by publicists—that we didn't bother including it in the mix.“
Now that’s 10 years old but I believe it’s still very much the case - People magazine relies on being spoon-fed information by publicists. It’s therefore very celeb friendly as it says what the celebs want it to say.
Which fits with it being the publication, despite being a tabloid glossy, that Meghan’s friends chose to spoke to.
Being a marketing and PR spin tool for celebrities is a good business model: give the people trashy gossip but have little risk of being legally challenged or publicly called-out by the people you’re gossiping about.
This makes People financially profitable. What it doesn’t do however is make People a reliable source of unfiltered truth; quite the opposite.
It will be interesting to see how many People stories there are on Harry and Meghan in the future and what they say.