Maybe this is what caused the sudden rise up in price when there was news of ebay soon accepting cryptocurrency as payment and the advertisements which caused some confusion during the concensus event during this same time.
Now with them denying it this might have caused the drop in price as well.

Oh crypto.

I dont believe that news like this will cause ups or downs because if the company will decide to accept a certain crypto they wont buy that crypto , people or shoppers wont also rush to buy that crypto just because they want to use it as a shopping/paying tool . The flow of the crypto market will still be the same as what they'v used to . Investors/traders will only buy crypto according to their needs but overall this news was still great , its nice to see that a reputable and big company like ebay is now joining the trend .