Everything gets shunned on release these days. It's like a fad. There's the release fans. Then there's the instant "it's horrible" anti-fans who've never even used one but will quote the white paper to you.
It's an affordable mirrorless full frame camera. It's that simple.
It's not for everyone.
It's not going to replace a 5D series. It's not going to replace the 1D series.
It may contend for some uses with the newer (latest, new price) Rebels, older (before the 80D) XXD prosumer bodies and 6D series for people who do not need the supreme AF capabilities of their other body options. It may. You have to put things into perspective, if using the RP for portrait, you're set. You literally don't even need AF for that. For landscape? Set. Again, you don't even need AF for that. But when it comes to tracking your 7 year old at their track meet or trying to take shots at F1.4 in your dark house of your kid taking their first steps, or recording your kids or family or whatever you want to use as context in motion in poor light, you may find out that... ok... maybe the RP isn't a replacement for these camera bodies that have way, way, way more robust AF features.
Granted, I've not used one. I won't use one. I have no interest in Canon's full frame stuff at this time. But, for people with the camera in their hands, it's got a great system for things that are not moving fast. So it should likely be a good all around general camera for general stuff. But, I haven't seen someone saying it tracks birds in flight and kids at their sports in poor light very well yet. Something that truly taxes the body and makes or breaks shots because the system literally cannot AF aggressively and accurately and is too slow with FPS to capture moments.
I use mirrorless for almost everything I do. My mirrorless is almost all manual too, no AF, and I image at F1.2 and F1.4 the most. But none of that is on a moving subject. It's general shots, portrait, photojournalism of my family, etc. When I want to shoot action, I get my 1D out.
So I think a lot of times its people assuming the camera is meant to do "everything" when its not. No one recommends the 6D for action. Why would one expect the RP to do that too?
As for websites and youtube, etc, even bad publicity is good, because it attracts views which is ad revenue.
My suggestion: rent it from a rental agency and try it for yourself. Can't beat first hand experience.
Very best,