You can not tell if a thing is true unless it is writen explicitly in Scripture?
Does God hate dictionaries? What does "Blessing" mean? Do you think being created by God without sin is not a blessing?
God's angel Gabriel told Eve that she had found favor with God. I'd call that a huge blessing.
Getting up in the morning without pain is a blessing...
But I have to make a correction...God DID bless Eve...When she was sinless...
Gen 1:28 And God blessed them, and God said unto them, Be fruitful, and multiply, and replenish the earth, and subdue it: and have dominion over the fish of the sea, and over the fowl of the air, and over every living thing that moveth upon the earth.
So this blows your logic right out of the water...
Mary could not have been more sinless that Eve...Therefore, her being blessed 'among women' was not for being sinless, or being made sinless; it was because she would bear Jesus...And Jesus was blessed as well...
The seventh day was blessed by God...
Noah and his sons were blessed...
And God blessed all the people that blessed the Jews...
Being blessed 'among women' had nothing to do with being sinless, although being sinless may be a blessing...