We specifically choose not to implement expressions in DB queries. You should really use those only for pure data retrieval. Then on the client side you can do your data formatting on display as you wish for example with the App Connect Data Formatter.
Sitting here alone, indulging myself with perceived problems, I have figured out how to obtain what I was seeking to do. I was working on Send Mail To Name and wanted both names as in FirstName LastName. I did this by going into the corresponding API file and adding it there.
That’s suitable for displaying dynamic data on the page or using the innerText option on the page.
In your case, the solution you came up with is just perfect.