Without a doubt, Schedule Forecast is a great feature. I feel Schedule Forecast feature should be enabled for Artisans as well who usually create new schedules on Alteryx Server. Artisans can look up the existing schedule details at a specific time and decide if it is best time for their workflow to run. It will be counter productive otherwise in my opinion as curators have to inform the artisan to move their schedule to some other time as there are several other workflows running at the exact time and impact execution time.