Somalis do built other things as well. The existence of hotels, restaurants and other services is simple supply and demand and it helps stimulate the economy which allows funding in more important areas.
Somalis build stuff based on local needs and to fill a gap in the market or to boost economic growth or create employment opportunities. There is no excessive hotels or restaurants being build above other things, they are built alongside other things.
I tried to explain this in another thread:
It's already rotten buildings glad they're removing them
They are not, they are restoring the residential areas and buildings surrounding it as well.
Why would the government submit it to UNESCO for conservation otherwise? That's usually done to secure funding or technical support to restore it.
My concern mainly is how it might impact historical sites since there is little regulation in which spaces can be bought and used.
There needs to be a specialized institution set up with funds allocated to it. That's going to be far more effective in my opinion, to regulate and safeguard it.