I’m just surmising, based on the attention to detail she and Lorang are renowned for, that it would not be sensible to race Singapore [^1] in the run up to your second Ironman which you really need to nail (to get that early KQ before embarking on a busy T100 campaign).
[^1] (and all the acclimation required (where?) and the sickness afterwards (see West and Blummenfelt and others after PTO Singapore 2023)
The T100 contract is said to require that athletes attend but are not required to race, per contract.
Coevorden to get a short notice shout?
https://www.instagram.com/p/DHWJh1mA6mo/