You're welcome!
By 1970 the Motown sound was still popular, but tastes were changing. Just like a kid growing up, musical tastes were growing up too. The Motown standard was too "bland" for many of the people I cared about. By the time Tears of a Clown came around, it seemed "old fashioned" or "old timey".
Don't get me wrong, it was a nice song but it wasn't cutting edge, like the hip songs cool people liked. The Archies singing "Sugar, Sugar" just a few months before revealed that popular music was out of step with the times. But you guys know all about that, this is old news.