Expert review tags multiple choice as non optimized for mobile when answer position is horizontal

Hi everybody,

I want to be sure that my questions will be well displayed in every condition if I choose to display them horizontally.

On the support page, it is explained that on mobile and smaller desktop screens, this setting will revert back to vertical, witch is OK for me.
(see https://www.qualtrics.com/support/survey-platform/survey-module/editing-questions/question-types-guide/standard-content/multiple-choice/#Positions)

But the expert review give me a poor score cause all of these questions are tagged as non mobile optimized :

So my question is : Should I avoid to use this feature or is it OK ?