Uneven Floor Staining: Is this normal or should I have cntr redo?

[Cory Iannacone]

I have a question regarding floor staining and was seeking input.  I am at the tail end of my first rehab.  The floors are being redone now and the stain just went on last night.  I visited the house early this morning and saw that the stain does not appear to be even across the floor.  My guess is that it has been down for about 6 or 7 hours.  (Not sure if drying affects the answer.). I get that different pieces of wood will take stain differently, but this looks like it has more to do with the application of the stain (heavier amounts or not wiped down as quickly in different areas.  Here are my specific questions:

1. Is this normal when staining floors?

2. Is this something you would recommend having the floors redone, or would this end up looking okay at the end after poly is put down?

I have not discussed with my contractor yet.  He is already behind on schedule, so I don't want to delay this longer than I have to.  

Thanks in advance for any input!