What the heck?

I think when they are saying low end, they are meaning in age and megabytes not cost. 64 bit has been available for over a decade and Sims 4 has always technically been a 64 bit game, with 32 bit support. They've given people 5 years to upgrade. The 6 year old machine I replaced today was 64 bit. My husband said he thinks the last 32 bit only machine we had was 10-12 years ago. To me, and probably to EA, anything over a few years old is low end by current standards.
I don't think it's a broken promise, so much as a difference in opinion on what low end means.