I mean, how is that any different from how they've handled 17 except for the gender?
He's kind of boring, but they're still slightly playing him as a joke at least.
18 was more funny in the Trunks sidestory thing. Both of them were.
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Not really a change from her original personality (not defending it, I hate it pretty much too since she's just…there), though I see her as pretty much a female Tien. I mean, one of them had to be the straight-man in their band of homicidal death bots.
Tenshinhan gets joked at too though, anything involving Chaozu for instance.