Do we take from this that he is saying he thinks the Lugano reactor to have been operated at 1400C?
I took that as an implicit admission that the reactor was not operated at 1400°C. According to the report, as soon as input power was increased to 900W, the average reactor temperature increased to 1400°C within a few minutes (see page 7). Table 6 on page 21 (and plots 6-8) is also reporting that the average temperature was about 1400°C for about 20 days. Even the abstract is referring to operating points rather than peak temperatures.
So either Rossi himself doesn't believe that at some point the reactor has been operated at 1400°C on average, or I am reading the report wrongly and that's why I asked here. To clarify, I'm aware that actual temperatures were most likely way lower than that.