On one hand yeah not really a sword sword, just mall ninja shit. On the other? Thought counts for a bit, plus how often are you doing sword shit anyhow?
Start as you mean to go on. Sounds like a good catch.
If she dates him for any amount of time, she could end up with a full set of fantasy plate - she'd have to make sure he's clear about the kind of coverage she wants, but those are good relationship evaluation points.
Dump him. That's a useless decorative sword that will probably break the first time you really need it. A real man would have brought a nice utilitarian machete that could be used for any number of jobs. Or maybe just a good quality pocket knife.