That’s what I would do for a couple reasons. Using VS in that situation would work but it’s going to increase your workload. If your intent is to capture and descend on the path why switch modes just to have to switch back later? Also, should you happen to get distracted by something VS will blow through the path whereas VNAV will not.
I will us VS in situations where descending at 1000 FPM in VNAV would capture the path close to the level off altitude which results in an awkward dive/level off maneuver. In that situation you want more than the 1000 FPM VNAV Path would give you, but something less than the idle dive VNAV SPD would do. Using VS with a rate that reaches level off before the path results in a smother descent. Another option would be to stay in VNAV and open the speed window which will put you in VNAV SPD and just bump the power up a little once the throttles go to ARM.
It’s all just technique in the end. As long as you comply with the clearance there isn’t a right or wrong way to do it, but some techniques are more efficient than others.