He hasn’t gotten the delegates that are needed yet, so the 329 mean absolutely nothing
That 329 delegates represent 25% of what’s needed, and considering most came from the Cruz firewall, they mean a lot.
At the end of this night, he has picked up delegates at a pace which will if continued will give him about 10% more than he needs to be awarded the nomination outright.
Cruz, meanwhile, is running some 40% behind the pace: and the most-Cruz favorable states are mostly finished.