Yep - but that is quite obvious
Static thrust is important in that it shows you the worst case condition.
what is that?
That is when you are trying to get the model to perform at critical speeds - This typically means at landing and take off .
Hovering is a real world part of modeling now ( really) and the static test is important at showng how much power is required to produce X amount static thrust.

Again - real world data now tells us that simple 1-1 thrust to weight power does not provide hover capability- tho that may seem to be the case .
So -- the static data -coupled with proven flight data can be extremely helpful.
Countless millions (billions) have been spent by various aircraft manufacturers, trying to duplicate the hover now acheived by high school boys with simple cheap foam /electric powered stuff.
some have now been able to make models which stop-start -in forward flight and actually make controlled reverse (yes, controlled ) flight!
If all of this is a bit out of sync with your knowledge of flight rules - check it out -it is extremely interesting stuff and may even change your attitude about what really really constitutes a flying machine.
Did you know that the full scale aerobatic pilots now haunt the model flight exibitions -to see what new possibilities in flight have developed?