Falcon hardly does any type ratings on their own. Occasionally they did a type rating for direct entry captains (I don't know if it is true or not).
This is the reason why they are asking for a 1900 Type. The 300 hrs multi is never lowered by my knowledge. The only way to find this out is to call the office. LT= UTC-4 hrs, offices will be clossed on wednesday/thursday as that is the local weekend.
To know if you make a change is to call them. People that are doing the hiring: Bevan Dods, Mustaf Ali, Steven Sanchez. Any of these people can tell you what the current requirements are.
Good luck
P.s. No gals at Falcon