We had a longtime member here who had to bounce because of his military commitments. He posted once that the 75th (this was...2018, 2019, somewhere in there) had E-5's without a combat deployment. Now we're 6-7 years removed so I don't think it unrealistic to have SF and 75th alumni without trigger time, same as the 160th who are almost certainly seeing aircrews without combat.
And yes, we've seen this before and the units did not suffer as a result, but it is something to consider: the Maduro raid probably had guys without combat time. And that is one more reason only the US could make the raid happen. Experience built a training process so thorough that we don't need a bunch of battle hardened guys to complete a complex and dangerous mission.