Interesting how you left out that,
in the main canon (the anime), the travel that Ichigo does and the travel Yhwach does takes the
almost same exact time if u wanna use episodes as time-frames so this is indeed not a good example:
- Ichigo's travel starts at the beginning Episode 19 (01:23) and ends it at around the middle of Episode 21 (07:45).
- Yhwach's travel starts at the end of Episode 21 (22:32) and ends it at at the end of Episode 23 (23:45).
If you wanna use the cinematic time-frames that we see therefore:
- Ichigo took exactly 2 episodes and 6 minutes 22 seconds to reach the palace.
- Yhwach took exactly 2 episodes and 1 minute 13 seconds to reach the palace.
It really isn't the support you think it is man, if you wanna argue author intention because of the amount of episodes/time in-between, it's basically the same.