Why data validation can't handle dynamic named ranges through Indirect

问题

I had a problem with creating dynamic named ranges and incorporating that with data validation. On my previous question this was the (part of) the answer given by XOR LX: offset, named range and data validation

The combination of dynamically-defined Names and INDIRECT is not permitted within Data Validation. In such cases you need to employ EVALUATE, though you should note that, despite no explicit VBA being called, this will nevertheless require that the workbook be saved as macro-enabled.

Question remains why data validation can't handle this?

In my case I decided to hard code all possible options, as they were limited in number, but are there other options without making use of VBA?

来源：https://stackoverflow.com/questions/42954283/why-data-validation-cant-handle-dynamic-named-ranges-through-indirect