Unless the touchscreen is fully redundant, I cannot imagine it being worth the loss of physical buttons for the 99% of times you are warming up a pizza slice for 5 minutes.
Of course, The pizza setting is two pushes away: first “my programs”, then “Single pizza slice”, and it remembers to run hot air all the time and then the grill for the last minute.
(Entirely unrelated: Does anybody know how to check the software version on these ovens?)