That’s just because you’re used to it. The pythonic ternary is structured like spoken language, which makes it easier to read, especially if you nest them.
Is there an objective argument for the conventional ternary, other than „That’s how we’ve always done it!“?
If the conventions suck you have to break them. How else can you improve things?
map and filter are almost always inferior to generators and comprehension expressions in terms of readability. If you prefer the former, it’s just because you got used to it, not because it’s better.