No.

Yes.

It is about time that we get more new Jedi instead of killing off the last few survivors.

Not speaking for all fans, just for myself, but Sabine being Jedi trained from the getgo seemed out of place b/c she’d be an opee sea killer out of water in a Jedi academy. The thing is tho, she had always been that as a Mando. She wanted to be reaccepted by her family, then the Spectres broke apart, and Jedi training would come in handy for wielding the Darksaber. Also, as @Nobody90 said, new Jedi needed to be recruited, even if they weren’t Force-sensitive. Their numbers were too few to just rely on Force sensitive people

Sabine is a Mandalorian, not a jedi. To me it seems the decision to make her force sensitive was just a clickbait-style attention grab.

^ It was, it was quite plainly stated that there was no plan to make Sabine a Force Sensitive. It came out of nowhere.