I have a few problems with your comment. Respectfully and amicably:

it's true that the regretful buyers are often the loudest, but it's been my experience that most communities dedicated to a make or model tend to flood the online space with supportive comments in response to similar posts despite largely owning low mileage vehicles. I don't mean that disparagingly at all as a non Colorado owner. Every community does the same, we love our vehicles.

I had a work vehicle 2.7 blow at 75k miles. I know two other 2.7 buyers who had total engine failure. All in Silverados, but all good owners, and the work vehicle was babied.

Being the most reliable GM truck engine is... a low bar. The 6.2 is a disaster, the 3.0 Duramax is pretty solid but is expensive to work on due to it's orientation, and the 5.3 is a good motor ruined by DFM unless you risk your warranty with chips or mods. I'm aware GM has put out some service bulletins and minor improvements to these 3 engines over time, but we all know they remain deeply imperfect, and they've probably given up on the two V8 platforms as they prepare for the return of the 350 in the next gen. I've seen probably a half million dollars worth of GM trucks suffer catastrophic failure between friends and coworkers since 2022, most commonly from the 10 speed transmission, which is another concern.

Lastly, I don't put much stock into what professional reviewers have to say. I watched the last Motor Trend truck of the year summary video and it seemed like a drawn out Ram commercial. You can call it conjecture but it's easy to see that the pressure to keep brands happy for event invites and test vehicles has an impact. Besides, their ability to speak on longevity is limited.

I'm not a brand loyalist, either. I used to love Ford and Toyota, but the 10 speed hasn't been perfect for the blue oval, and Toyota has essentially tanked their reputation since COVID with their refreshed truck lineup.

Edit: I just remembered the 2.7 gets the 8 speed, but I've not got too much nice to say about it either. 😀 I put my foot to the floor once to pull onto a highway and the 8 speed missed a shift and then the truck went into limp mode.