If it was a concern, you would have known of it before buying. It's nothing like the gas in oil issue the CR-V's experienced. That was headline news. Don't let a few people on the forum make you question your decision. Just enjoy it...
That's a good way to look at it.
I have the same view toward the direct injection carbon build-up issue which may never materialize into something that needs attention. I've had mpg drops after a fuel injector cleanings on two different low mileage vehicles and never had it done since with vehicles humming along up to 150,000 miles. The lesson is if it ain't broke don't fix it, don't worry, be happy if you were happy with the purchase in the first place.
My thinking is take a benchmark on your mpgs in your typical driving, in my case 32-33 in long haul highway driving at 72 mph, give or take, and 28-29 in mixed rural/suburban/highway with some short hops mixed in. If the engine fells good, sounds good, and the mileage stays relatively steady, then just enjoy the ride and don't f*ck with mother nature, so to speak. Just don't skimp on oil changes.
There's not much point in obsessing about what might or might not happen. And as you indicate, it's not like the competition doesn't have their own isolated issues. Consumer Reports continues to give used first generation CX-5s through and into the 2018+ high reliability marks based on subscriber trouble reports which illustrates how a cluster of complaints is not reflective of the overall odds.
There is one concession I'm making with this direct injection engine: I'll be steering clear (pun intended) of no name gasoline off the Indian reservation even though my other vehicles have run great on it.
Sunoco is Top Tier and it's nearby. [Edit: I see now that Sunoco is no longer listed on the Top Tier web site. Evidently they suspended their participation in May 2020 due to Covid.] That ought to do it. Too bad, though. The reservation undercuts everybody by 20-30 cents because they don't charge the state fuel tax even though the tax break is supposed to go only to the tribe members. So I guess I'll be complicit in violating the law only half the time. Or is it a law if it is not enforced, like a speed limit signs?