This time to an ec2 instance I have running in Sydney, the ipv6 route is going via Tokyo

traceroute to 2406:da1c:fb0:8700:x (2406:da1c:fb0:8700:x), 30 hops max, 80 byte packets
1 2406:e001:x (2406:e001:x) 0.313 ms 0.270 ms 0.241 ms
2 2406:e000:2801:c::1 (2406:e000:2801:c::1) 1.934 ms 1.886 ms 1.881 ms
3 as23655.auckland.megaport.com (2001:dea:0:40::4d) 13.682 ms 13.571 ms 13.511 ms
4 2001:7fa:11:6:0:1b1b:0:1 (2001:7fa:11:6:0:1b1b:0:1) 14.333 ms 13.568 ms 14.926 ms
5 10ge2-3.core1.syd1.he.net (2001:470:0:454::1) 36.484 ms 36.293 ms 36.296 ms
6 10ge1-1.core1.tyo1.he.net (2001:470:0:46c::1) 217.713 ms 217.954 ms 217.902 ms
7 asn-telstra-global-as4637.10gigabitethernet5-2.core1.tyo1.he.net (2001:470:0:395::2) 213.530 ms * *
8 * * *
9 2403:e800:ff00:110::3f (2403:e800:ff00:110::3f) 179.176 ms 152.201 ms 178.125 ms
10 2403:e800:ff00:110::3 (2403:e800:ff00:110::3) 180.725 ms 186.530 ms 179.013 ms
11 2403:e800:105:26::2 (2403:e800:105:26::2) 149.544 ms 176.722 ms 178.335 ms
12 2400:6500:0:2::17 (2400:6500:0:2::17) 160.882 ms 180.648 ms 2400:6500:0:2::13 (2400:6500:0:2::13) 162.052 ms
13 2403:b300::5 (2403:b300::5) 152.504 ms 152.058 ms 150.752 ms
14 2400:6500:0:2::20 (2400:6500:0:2::20) 177.887 ms 2400:6500:0:2::f (2400:6500:0:2::f) 177.906 ms 2400:6500:0:2::20 (2400:6500:0:2::20) 150.452 ms
15 2400:6500:0:4201:8000:0:6440:10fe (2400:6500:0:4201:8000:0:6440:10fe) 150.899 ms 2400:6500:0:4201:8000:0:6440:11ae (2400:6500:0:4201:8000:0:6440:11ae) 159.809 ms 2400:6500:0:4201:8000:0:6440:11f8 (2400:6500:0:4201:8000:0:6440:11f8) 186.403 ms
16 2400:6500:0:4201::6440:c36e (2400:6500:0:4201::6440:c36e) 188.249 ms 2400:6500:0:4201::6440:c369 (2400:6500:0:4201::6440:c369) 179.772 ms 2400:6500:0:4201::6440:c36c (2400:6500:0:4201::6440:c36c) 180.261 ms
17 2400:6500:0:4201::6440:c373 (2400:6500:0:4201::6440:c373) 155.777 ms 184.783 ms 2400:6500:0:4201::6440:c363 (2400:6500:0:4201::6440:c363) 160.099 ms
18 2406:da1c:fb0:8700:x 177.976 ms 177.560 ms 152.411 ms

Here's the ipv4 for comparison:

traceroute to 13.239.55.x (13.239.55.x), 30 hops max, 60 byte packets
1 192.168.1.1 0.199 ms 0.169 ms 0.235 ms
2 69.7.69.111.static.snap.net.nz (111.69.7.69) 1.720 ms 1.711 ms 1.686 ms
3 * * *
4 23655.syd.equinix.com (45.127.172.156) 36.520 ms 36.533 ms 36.518 ms
5 16509.syd.equinix.com (45.127.172.131) 35.061 ms 35.046 ms 34.986 ms
6 * * *
7 * * *
8 52.95.37.199 (52.95.37.199) 39.605 ms 52.95.37.191 (52.95.37.191) 35.039 ms 52.95.37.181 (52.95.37.181) 43.811 ms
9 52.95.36.113 (52.95.36.113) 36.209 ms 52.95.36.49 (52.95.36.49) 36.127 ms 52.95.36.17 (52.95.36.17) 36.118 ms
10 52.95.36.16 (52.95.36.16) 43.164 ms 52.95.36.66 (52.95.36.66) 37.312 ms 52.95.36.48 (52.95.36.48) 37.955 ms
11 52.95.36.121 (52.95.36.121) 35.887 ms 52.95.36.25 (52.95.36.25) 36.570 ms 52.95.36.73 (52.95.36.73) 36.491 ms
12 52.95.38.140 (52.95.38.140) 35.839 ms 54.240.192.255 (54.240.192.255) 36.088 ms 54.240.192.107 (54.240.192.107) 35.965 ms
13 * * *
14 * * *
15 * * *
16 ec2-13-239-55-x.ap-southeast-2.compute.amazonaws.com (13.239.55.x) 35.896 ms 35.841 ms 35.810 ms

Why do HE keep routing Sydney based traffic via Tokyo on ipv6?