I’m guessing that is at their neighborhood ward “church”. It would be really impressive if they let them worship in their Mormon Temple.
The new temple near us had an open house for anyone and everyone to go see. Once the open house was done they closed it down for a remodel. New carpeting, railings, pews, etc. Anything that might have been touched by a non-Mormon was replaced!
Won’t do any good.
Where ever an Islamist (Muslim whatever) appears, walks, etc that area BELONGS to Islam. Forever.
Asking Muslims to join you is like asking satan to join you.
No biggie though, neither Mormonism nor Islam is Christian.