yeah if he intends to play Beijing/Shanghai i think he needs some match practice before that. Thailand would be perfect to play a little weaker competition, see how the body answers and if he goes out early it doesn't matter.
I think if he's at around 75%-80% he will go. Maybe out of loyalty for the organizers and for the appearance money ofc.
And if he hasn't even gotten that far in his recovery then maybe he should skip the Asia tour yes. Would be a shame. The chances for top8 are practically gone then and he might even risk going out of top10 if he fails in Paris where he defends 1000p