IIRC, Grab would/will facilitate homemade food service by facilitating cheap delivery, whereas Josephine focused on the meal creation. Both businesses would presumably have symbiotic relationship.
In the blog post your parent linked, he spoke about it.
"I have a lot of good stories saved up that I’d love to share. Google corporate didn’t much care for my blogging, and even though they never outright forbade it, I received a lot of indirect pressure from various VPs. So eventually I stopped. Sad."