Great job once again–great job on getting the memo! When I initially heard of the Cuomo plan, I immediately thought of having stations blocked off like they do in London. 20 minute headways on the L is a recipe for disaster.
As Patrick O'Hara, of The LIRR Today stated, the funds were initially for the construction of the station.
"A $20 million project will add a stop on the LIRR Ronkonkoma Branch at the center of Long Island’s innovation corridor at Brookhaven National Laboratory."
-Governor Cuomo https://www.governor.ny.gov/news/governor-cuomo-presents-24th-proposal-2017-state-state-160-million-transform-long-island
I wonder what Amtrak into LI would entail? Perhaps they are reconsidering the HSR alignment via LI?