On the one hand, you could say that MotoGP got lucky. The heavy rain that was expected to cause flooding and potentially force Dorna to delay or even cancel practice at Motegi was not as bad as had been feared. The sessions started on time, and ran without incident, other than the normal perils of motorcycle racing.
On the other hand, the sessions were pretty much useless in terms of race setup. The weather forecast for Sunday is the best it has been all weekend, with some sun and high temperatures. FP3 on Saturday morning was drenched, a fully wet session making race setup and tire testing impossible. FP4 saw a line dry enough for slicks to be used, though times were 4 seconds off the best time from Friday.
And qualifying took place on a mostly dry track, but again, times were more than a second off what the pole time should have been. MotoGP pole was slower than Maverick Viñales' fastest lap in FP1. Even if the track had been fully dry, qualifying is just too hectic to be working on race setup and assessing tire life.
On the record