I may be in the minority but your husband sounds like he's got the fitness and a reasonable parter who's been smart enough to turn around in the past when encountering bad weather. I feel bad for the guy that you're here trying to construct an argument against him making the attempt and these jackals are spoon feeding your insecurities. If your husband needs more info, have him call the climbing rangers at Paradise.
I climbed with inexperienced climbers on a 16 hour climb of Rainier once. They worked a 40 hour week on some steep roof in Seattle, got off work and drove to Paradise with me. We climbed the mountain, picked up a solo hitch hiker on route, took some pictures with Japanese tourists and went home.
Congrats on the expected arrival of your baby. Sounds like they'll have an adventurous father.