As I believe is what is happening.
Once your DCT starts exhibiting any DCT issue, no amount of TCM update will solve it. So, you not having issues is a "current" blessing as it is more an outlier rather than what was common for the Ford DryClutch DCTs. We all drive our cars differently and subject them to differing conditions, so I can't concrete say your DCT will fail with certainty, just that IF it starts to exhibit any issue, then a replacement is the only way to reset the clock on the transmission.
And, if I'm not mistaken (so correct me if I'm wrong) but... Powershift Dryclutch DCTs don't have advice about TF replacement interval.
https://www.ford.com.ph/content/dam/...PowerShift.pdf
As quoted : "
The Ford Ecosport is filled with transmission fluid for life"