Maybe? I don't know. Whenever I notice someone using nice blurbs instead of a honest list of features and problems they solve, I immediately weigh the product down in my list.
I'd say yes to most of them. It doesn't take more than high-school level of education and a nonzero interest in how things work to be able to evaluate such blurbs for consumer products and services. I may find myself lost when dealing with specialized products and services for areas I have zero experience with, but in those cases I try to completely ignore any information from product vendors, and read up on recommendations from communities in the area (a good starting point is usually /r/$area).
It can be very hard in highly niched domains. Very niched products typically have a high price / low number of customers profile, meaning you want to really be sure the product is right for you, but won't find any (or very little) recommendation online.
Imagine a consultant who offers consulting on using cryptocurrencies as a payment method for your online business. The fees are $250 per hour. You're a paypal user and briefly considered using bitcoins for your online business, but are not sure about it.
Or imagine a physiotherapist who offers a treatment for a very rare (but not life-threatening) condition no traditional medicine could cure. It is rather expensive, but the guy says he can help you, yet you won't find any testimonial on the web because of the rarity of the condition.
In those niche cases I'd push for a contract, or otherwise ensure I have some recourse if the product/service turns out to be fraudulent. I admit I'm somewhat risk-averse with meaningful sums of money.
But if we're talking food in general, I have a relatively simple algorithm: I try out various price points of any given food category, and then settle on either: 1) for few cases where I care about taste, on the item that tastes best; 2) for everything else, cheapest one that isn't plain disgusting.
So e.g. for soft drinks, I have a strong preference of Pepsi Max > Coca Cola Zero > el cheapo diet cokes, which is based on trying them all out, and which changed over the years (e.g. couple years ago, I used to like one of the cheap brands the best). For cheese, I'll take the cheapest thing you've got that's yellow and is called "Gouda" or "Edam".
Brands are nothing to me beyond a way to distinguish between different tastes.
These blurbs probably work best the less you understand about the product or subject matter. If looking for a screwdriver, most of these blurbs will annoy me. If buying a car... maybe they'll work: I know nothing about cars.
The implication is that these blurbs are ads preying on the unknowing ;)
Not only "regular people", but you too are disproportionally affected by "nicest sounding blurb", and just don't realize it.