It is wise not to do a high power run toward solid objects, however some planes have a limitation that if the wind is over a certain speed, the aircraft is to be into or within a certain number of degrees of the wind direction. Running all four at the same time, especially if at a light weight is something to avoid if possible. Perhaps symmetrical engines only. Was there a specific reason to do all four at once? One person should be looking outside at all times to see if there is any forward movement. And of course, consideration of ground conditions such as slippery surfaces among other things.