Not sure what's more shock, the fact that FCO and MXP still operating, or why would anyone pay J ticket on this route.

You can easily get a better product for 1,500 USD cheaper, can actually get a lie-flat seat and in the modern aircraft like LX77W or AY350 even old LH340-3 has a lie flat seat.

But yes Thai mainly use A330 for mid haul flight, and with A350 start coming out replacing old 77E, I highly doubt they will refit any aircraft soon. But the long haul 77E hurts a lot of business customers for the past few years