Yes, her age could have been recorded incorrectly..... HOWEVER the only absolute source of her birthdate will be the parish baptismal records.... nothing else should be considered accurate.
The ship landed late March... the 25th... 1909 not 1908
There is a notation on the manifest made in 1942 when this Marya sought US Citizenship made in INS District 14, which would have been St. Paul, MN and Duluth, MN including Menominee Co, MI, Southeast MN, ND, Northern SD, Northwest WI
In addition if you look in front of their names you will see the letters SI and then Admitted. SI was Special Inquiry. They were detained at Ellis Island until the 27th.