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For "generic rule of thumb" such shifting is not correct, at least if max acceleration/performance/"power delivery" is wished. Simply because of gearing on most cars/most gearboxes even if it's past "peak of torque", if you think of gearing too, then in lower gear that lesser torque till redline still is more torque at wheels vs even if higher number at engine crank but at higher gear.
Then again, it's fine to not redline when daily driving, as in most cases one won't need full acceleration like on eg. track. Often even 1/3rd is sufficient to get with traffic. But if goal was to get max performance, max acceleration .. see above. Redline each, and only thing that can hurt performance, if one lets rpm cut-off mess up things.
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