When the access relationship is shown pointing towards a business object element it means the business object is being changed in some way. If the access relationship points away from the business object, that means it is simply being read (or accessed). There was (still is perhaps?) an issue when using the quick linker to connect business objects to other ArchiMate elements as the line can only be created in one direction.
Every connector in EA has a source element and a target element, determined by the direction you create the line. If you need to flip a relationship round, it is normally best to right-click and choose 'Advanced->Reverse Direction', rather than just changing the 'source->destination' direction. Visually, you see the same thing on the diagram, but using 'Reverse Direction' swaps the source and target elements for the relationship, as if you had actually drawn the line the other way in the first place. Just changing the direction in the properties window simply moves the arrowhead to the source end of the line so the relationship matrix and other functions in Enterprise Architect would show the 'wrong' information.
I think strictly speaking the ArchiMate standard says that an access relationship should always be created from a business process to the business objects. Therefore, to comply with the standard, it might be best to create them all in that direction and then use the direction attribute to visually change the arrowhead to point the appropriate way (source to destination or destination to source). I suspect this is why the quick linker only supports creating an access relationship in one direction.
The official definition says - "the direction of the [access] relationship is always from an active structure element or a behavior element to a passive structure element, although the notation may point in the other direction to denote “read” access, and in both directions to denote read-write access".
However, if you want to create a relationship matrix in EA to demonstrate which business processes update which business objects and another matrix to demonstrate which processes read which objects, you would need the lines to point in the right direction, not just have the arrow at the 'wrong' end. I guess it depends on what information you need to get out of your model later and in what format?!https://pubs.opengroup.org/architecture/archimate3-doc/chap05.html#_Toc10045319