Felipe , I know that show it as a List is "obvious" behavior for this Field Type. However, we must remember that if the user wants a list of the entries for the Field, he can check it in the "View Entries" screen of Liferay Forms.
That being said, maybe we can think of something more useful to also be shown here. For instance, in Google Forms, if the system identifies that there user are submitting repeated answers in a Text Field, he automatically switches the card to a Bar Chart, showing which answers were submitted the most.
Do you think maybe we can work on something like this? If we identify that 50% percent of the answers submitted are repeated, we change it from List to a Bar Chart. What do you think?