I'm sure they did. However, intentionality neither makes it consumer friendly nor beneficial from a marketing perspective.

And I think it's brilliant: it says "ca 2010 technology, the good parts". Technically, it's not exactly correct (according to Wikipedia Core 2 was discontinued a year before the Pebble launched), but it's one of the few lasting iconic names from that era in technology that aren't Apple. RePebble playing with that reference is exactly the same pattern as xyz-90 letter combinations reminiscent of audio cassette blanks popping up all over the music industry when the 80ies revival was in bloom.

Will it eventually end in a "we got sued by Intel!" marketing gambit? Certainly a possibility. Is assume they have played through both scenarios.