Well, both explode at the beginning of your next turn, so good luck either running yourself from blast or keeping enemy inside blast zone :)
And if you want to throw it somewhere - good luck throwing multiple charges when you don't even have an action :)
Yeah, that's pretty powerful, but I...
Tiny Hut is actually a haven right now only because spell says so; without impenetrable dome you still need to stand a watch - so it does not satisfy haven description in T&T.