Ugh - I missed that he would take it elsewhere. Thanks for noting that @Mwfan1921
In theory, it won’t hurt. My kids took stuff at BYU Online.
I don’t think the course was easier. I think it was offered at a more convenient time - summer and asynchronous - so they could continue to take the classes they needed. Or in this case, so they could focus on this one class vs. have it as one of 6 classes.
If the class is approved (and make sure your HS will accept it for graduation), then I think it’s fine.
Sorry i missed that.