My copy from AmiAmi showed up today....no bent antenna issue....
...and I have to say a big thanks to AmiAmi's shipping Dept...they truly went out of their way to ensure my item (and I assume those of many of their YF-21 customers) arrived safely and with the best shot at avoiding damage to said antenna...guessing they must be aware of the problem and are thinking it may be caused during shipping....unless the entire top of my box would have been crushed, there is no way nothing sitting on top of it would have caused any pressure to be applied to the top of the toy's packaging....
Custom packaging and shrink wrapping....