Except that he changed the line with the link in it. So that makes me think it was purposeful.
Also, Q has purposely misspelled things as hints. But when he has accidentally misspelled something, he has followed up and said “moving fast, misspelling unintentional” or words to that effect.
So that’s why I’m inclined to think this was on purpose. :-)
Link on first post was an onion link for a Tor browser which I suspect most don’t have.
Second link was to a YouTube video, accessible by all.
Might be as simple as that.
The first one used the TOR-browser link, the second a broader audience link.