You Don't Like a Good Fit? II

K 10 7 2
A J
K J 10 9 8 4
J
Q J 6 9 5 4 3
10 4 K Q 8 6
Q 5 2
K Q 7 6 5 4 2 10 9 3
A 8
9 7 5 3 2
A 7 6 3
A 8

SouthWestNorthEast
1 2 2 Pass
3 Pass 4 All pass

SouthWestNorthEast
1 2 2 Pass
3 Pass 3 Pass
4 Pass 4 All pass

I'm just coming off a hand where my partner, a very experienced player, preferred spades over diamonds while holding 2 of the former, 5 -- that's five -- of the latter! There was indeed a slam in diamonds, while we squeaked by in 4 spades by virtue of a 3-3 split, tying the diamond bidders who missed slam with 420.
I have no quarrel with South's opening bid of one heart. When I tell the ladies I'm mentoring that I'd open such a hand one heart and they gasp, I retort, "Well, you've got a partner," meaning that if we don't have an eight-card or better fit, we're not going to make that suit trump, are we? I've only bid my distribution and now my partner will offer his or her input as we march toward the slam available here. Or do we?
Here we have the spectacle of two pairs finding their mahvelous ten-card diamond fit and throwing it away for . . . throwing it away for a 7-card major? This hand could also appear under Don't Sneer at the Minors. With only two pieces, I would not raise a 5-card suit, even if my two cards were the top two. If you don't have a better fit, then you almost willy-nilly have a no trump hand, presuming you've enough hcp's for your bids. Here the pairs not only had a better fit than the 5-2 hearts, but found it -- and then discarded it. You go figure. C'mon, now. There's only one trick difference between a major-suit game and a minor-suit game. Don't you think three more diamonds will more than make up for that one-trick more needed for game.
Indeed, one bidder stuck in a 3 spade bid, almost surely to announce a stopper for a no trump game, which indeed would have been the second best contract, beating all pairs not in slam. But that was dismissed (reasonably enough) for a second affirmation of a diamond fit. And that was dismissed for a non-fit.
Oh, there is nothing like a fit. (Sung to the tune of "There is Nothing like a Dame")