Zigbee2mqtt exposes text attribute but the same doesn't work in HA entity

I have an IR blaster which shows as follows in zigbe2mqtt:


When set the focus to the text box labeled “Ir code to send” and subsequently remove the focus, the code gets sent and the targeted device and it responds accordingly.

However, if I try the same in HA, nothing happens although it appears as if HA had done something:
image
What am I missing?