HTC announces the Desire 510 Android phone but doesn’t mention its 64-bit processor

I’m glad to see a 64-bit phone from HTC, but there’s something quite odd about their official announcement of the Desire 510. Nowhere in it does it mention a 64-bit processor and that strikes me as very strange. Wouldn’t most potential customers consider a 64-bit processor as an attraction to purchase the Desire 510? But HTC didn’t even mention it beyond saying that the phone comes with an “ultra-fast processor.”