I've definitely in my own memories confused bits of Pilgrims with the actual show before (in specific, Apollo remarking on the moon missions that he was remembered, and Kirk reminding him; not as a God.... in my mind... when replaying the scene... its totally Shatner's voice; Uhura's happy ending in Of Gods and Men is heartwarming, and I like the thought of an Enterprise-M Museum ship existing. There hasn't been one episode of STC that isn't in my own personal headcanon. It pains me deeply that Renegades had to file off the serial #s on the Chekov/Uhura swan song, especially knowing in retrospect that things in production would have been good to go.

if you like it and it isn't so glaringly contradictory of the canon then you can count it as events 'that happened' (SPOILER ALERT: it's all fiction. Except TMP. That did happen
That would be hilarious.