Every time someone makes this comparison all it does is strengthen Lukashenko and Putin's propaganda machine. It doesn't help Protasevich, it doesn't help Snowden, and it doesn't create room for any positive political change.
If the comparison to a recent event is strengthening the propaganda machine of those regimes, that says a lot more about said recent event than it does about those regimes.
How is it apt? In one case a fake bomb threat and a fighter jet force land a commercial flight for political reasons of a despot. on the other side refusal to allow air travel through sovereign air space of democratic countries, and was "downed" after failing to comply.
This is far from apt comparison.
politically motivated interference with airliners in flight, to force a landing and arrest people in transit who are currently not within your jurisdiction
You are assuming there is a neutral third party. Yes, the comparison does strengthen Putin's propaganda machine. But not mentioning it strengthens the US propaganda machine. You are picking sides either way.
Not mentioning it does nothing. The US propaganda machine is not hurt in any way by mentioning it. It happened nearly a decade ago and is not really a similar situation in any way except that it involved a plane.