Weston may have underestimated the demand for bigger apartments in the Standard Building. IIRC, another Crain's article several months ago reported that the building is about 50-50 1br vs 2br units and that the 2br units were renting MUCH better than the 1br.
I am also wondering if maybe we have reached a point downtown where your project better be loaded with amenities and/or be a super cool space in order to compete.
The Standard Building is nicely done but not incredibly unique, whereas both Worthington and the Halle Building are pretty neat spaces, less run of the mill.
I honestly think it comes down to pricing. Both the Worthington and Halle Building have pricing hovering around $1.50/sqft whereas the Standard Building has pricing hovering around $2/sqft.