Mosh
mosh.org
mosh.org
It also did not justify or qualify the statement. So the non-sequitur in combination with an absolutism is probably why you saw downvotes.
Here's a better way to express what I think you meant:
"In UDP-hostile networks, mosh isn't suitable. For these situations, classic TCP ssh works well. To handle disconnects without losing your work, you can use GNU screen or tmux."