I do not agree for several reasons.
First of all, being forced to do something you would not do otherwise (like exploding the diamond you mentioned in your example) because the board sucks is part of the game. I can’t count how many times I matched 3 blue tiles on Kashhrek allowing him to heal himself because there was nothing else I could do, this is part of match-3 games mechanics, and I got over it a lot of time ago: if the board sucks you suck too, that’s life.
I think it is less compliant to the game mechanics and philosophy creating a shield in a strategic location and not being able to use it because automatic reshuffle puts it somewhere else, even if you could make it blow exactly where you wanted it to explode.
Finally, again in relation to your example, the diamond you want to save for a later use could still explode immediately after reshuffle because it is randomly placed next to 2 other tiles of the same color, so reshuffle doesn’t seem to me the best way to preserve your strategic plan.