my switch lite air suction holes came covered.

[sterile rain]

Only a few area are really pulling air, this a factory’s error?

the air suction gap is small and the console does not cool properly

[pale fable]

This is normal. Due to the fact the Lite has uneven airflow on the backvent.

There is an airflow channel for the fan sucking air from the left vent (look at the back of the console), but the right vent is nearly blocked off.