> According to the instruction I received, there have been no arahants since a few decades after the death of the Buddha.

I don't believe that is the standard view. I haven't heard it before at least. And it seems odd to me that anyone would claim this, seeing as no one knows every person who's lived in the last 3500 years.

>The industry generally claims to be secular, or at least, to not depend on a religious interpretation. If you folllow an openly-religious meditation teacher, you shouldn't hear that reassuring touchy-feely nonsense

I think you are labouring under some dogma, all due respect.