responsive dt creates invalid html

https://live.datatables.net/tuhikeno/1/edit?html,js,output

to see the errors, run the demo above and move the output to a new window, narrow the window to force the responsive plugin to work then validate the html in the window with W3C Markup validation service.

Once done you will see many errors like

Error: A table row was 6 columns wide and exceeded the column count established using column markup (4).

Obviously, this is the responsive plugin doing what it is intended to do, which is to hide some columns. Is there something datatables can do to update the layout to end up with valid markup also?

Start with the linked live.datatables.net demo and reproduce the problem by moving the output to a new window, narrowing it, and validating the resulting HTML with the W3C Markup Validation Service. Investigate the responsive plugin behavior that hides columns and determine how the generated table can avoid the reported column-count errors. Done means the responsive output validates without these errors.