Right now there’s no way to increase item spawn rates, so your point is moot. And there shouldn’t be a need to punish one playstyle over another, simply because it’s not your default playstyle of choice.
And even if it’s unbalanced from a gameplay perspective (which I very much doubt, given how common thread is from alternative sources), it makes sense from a real-world perspective. A ‘realistic’ perspective appears, for better or for worse, to take precedent over a ‘gamey’ one.