Are we sure that the "Tweet Unavailable" message isn't just because a tweet was really popular and the script that's pulling the info didn't get a 503 error or

Are we sure that the "Tweet Unavailable" message isn't just because a tweet was really popular and the script that's pulling the info didn't get a 503 error or something temporarily when it was pulling the tweet content? Why is it always a conspiracy for something that's explained by something a lot less conspicuous?