I think the responses on the thread have been more than sufficient, Sato was known to trouble Ding Ning and made the national team a few times, so I find it amusing that you are using their (current) WTT ranking to measure their strength.
That said, they are far more exciting to watch now than I ever remember, as formidable as they were even in the late 2010s. Hashimoto's forehand is much better now than it was back then.
i think I must also emphasize WR issues
since these, should we call non top 6 players, will not get the chances of high ranking point tournaments, so it is impossible to climb world ranking - especially if they play very little events, or feeders a year (both of them 1xSC, 1 x C, 4 x Feeder
even winning 8 feeders, you are only WR25
8 x feeder finalists, you become only WR40
8 x feeder SF, you become only WR80
it is not uncommon to be floating between WR20 and WR80 due to having little chances of attractive points/events
Ie, these choppers could easily beat 1 or 2 top players in a row in a Smash for example and get into say 2 x QF and gain 350 points each, which equates to WR40 with just 2 events, or +finalist x 6 in feeder getting top into WR18 or so.
Its all about maths and having rights to take part in luxurious WR events, and then the draw.