IMO, this hand deviates very far from what most players expect a 15-17 NT to show. Yes, most good players will open 1NT with some hands with a 6-card minor; during this weekend's Individual I think I did it more than in the past 6 months, to avoid letting the LOLs declare.

But few would consider a hand with two small doubletons appropriate, and many wouldn't do it unless both doubletons were at least Kx.
So the example hands deviate in three ways from what most would expect: 1) they're not in the stated HCP range; 2) they're only borderline balanced; and 3) the suit texture is not NT-appropriate. One flaw is a judgement call, but three doesn't sit right with me.
I suppose they claim that the deviations cancel each other out -- the long suit provides playing strength that makes up for the doubletons. This is presumably what the K&R evaluation reflects. However, as someone pointed out, K&R is known to be a poor way to evaluate balanced hands. I haven't read the description of it, but it apparently awards points for distribution, which is only valuable if you're going to be ruffing.
On the other hand, maybe this should be viewed similarly to the people who open a strong 2
♣ on hands with 17-18 HCP and a long, solid suit, because it fits their agreement of "8-1/2 playing tricks." Sure, it fits the description, but it's still a pretty stupid thing to do, because partner won't be able to evaluate his hand properly if a single bid encompasses such a wide variety of hand types.
But the player who does this is supposedly a local expert, so I suspect he hasn't been burned too much by opening these things. Maybe it's because the hands really do play like 15-17 NT's, or maybe it's just because the misinformation causes the opponents to misplay or misdefend.