I highly disagree that this is a 1PPI here, and I'm betting almost everybody else would agree.
We're technically giving 'false' mileage to people who don't want to take the NYST 'ramps' from I-787 to I-87.
Distance of 0.21 & 0.25 mi from existing points, well under the 0.5 threshold.
Wouldn't matter if we were putting I-787 to it's 'SIGNED' end (instead of the FHWA route), as you'd have that 'proposed' 1A point as the connection to I-87 and also have that point @ Hoffman Ave. And you'd still include the the 'current' I-787 point in US-9W's file as 'I-87(23)'.
For US-9W, you could just call the point as 'HofAve' and avoid mentioning I-787.
As for the label on I-787, 1A can't be helped sadly, since it is posted as '
Exit 1'. Also, the 'ramp' leaves @ the 0.4MM (but it's really 0.6 miles from that point to 'HofAve'). Overpass is @ 0.3MM. Looping around is ~0.9 miles to complete the movement that's 'missing' from the posted 0.4MM to center point of the other 'Exit 1' ramps.
IMHO, there's a lot going for them to override any possible 1PPI here.