Consider that modern TVs no longer use IR remotes but wifi/bluetooth. Whilst it may work with current stuff it may not work with new stuff e.g. when you replace your TV etc.
i think, for me, why do I need a box that clumsily replicates what my TV does, minus Alexa.
While I tend to agree, and it will certainly need bluetooth to be useful I now have 4 different voice controls and it would be good to have them all in one unit. I have a humax one that links to Alexa but is only IR.
Perhaps Amazon is behind the times and we will need to wait for V7 or thereabouts.