Small upvotes to question are given because question are asked in a few time frame like 1-2 minutes and if musing starts giving upvotes to question then i think there will be less number of answers and more number of question will appear.
musing is here to grow their community and make our and their profile better as answers are getting better upvotes because to give a answer there is a many research behind it and users are working hard to get best answers to the question.
So their hard work is being understand by musing and musing upvotes more to answers and less to question.