After the 'great recalc', do migrated questions and answers, and comments, and flags, and votes et al now count for reputation points on the destination site? This wasn't made completely clear in the blog post...
Yes, they do.
Actually, they always did, except there hadn't been a recalc like this since 2008.
(this also works for badges, but that did work before the recalc, I got awarded a few when some old pre-meta post of mine got migrated here)
Keep in mind that you also lose the source reputation for answers on migrated questions, as they are soft deleted when migrated.