No, just lucky. Being in a transporter loop for that long would probably lead to pattern degradation after awhile.
You're saying that in an alternate universe, Scotty would have been the one to die as a result of pattern degradation, instead of the other guy?
Possibly yes, it was random chance that the pattern degraded.
Scotty connected the emitter array and the phase inducers while the pattern buffer was in a diagnostic cycle. Using power from the auxiliary systems, he was able to keep his pattern from degrading for seventy-five years. One of Matt Franklin's phase inducers was slightly out of line and failed. That caused his pattern to degrade over time, until it was down to 47%, after a point when he couldn't have been recovered. If someone was able to come for them 10 or 15 years earlier, he might have been recovered.