I can tell you exactly what they were thinking, and it's disgraceful.
The horse is 11yo and been off the track for more than 6 years

They figure, put her in work, if she wins even a half decent race, the foal will fetch a better price and any future progeny will increase in value as well.
What they didn't think of, was what you correctly pointed out.

Very sad.

__________________
RaceCensus - powerful system testing software.
Now with over 400,000 Metropolitan, Provincial and Country races!
http://www.propun.com.au/horse_raci...ng_systems.html
*RaceCensus now updated to 30/04/2024
Video overview of RaceCensus here:
http://www.youtube.com/watch?v=W821YP_b0Pg