Literal recreation of biblical scenarios is often problematic. A contemporary reenactment of bible times rain-making moments requires accurate discernment. Without such spiritual intelligence, the gathering may become an embarrassment - an miss or make optimism gathering. When the Israelites were in the desert, God did not respond to the desert situation by supplying rain. Manna - not ran - was the intervention.
God therefore has an array of choices and we should not always run to the rain solution. In the Egypt Joseph-Pharaoh moment, the solution to the drought was stocking for it. The years of drought were not adjusted. Joseph got a presidential appointment to chair the drought impact minimisation taskforce. Full drought-full stock. For Elijah at Mt Carmel, it was a sin-related curse that needed reversal. The reversal was conditional and was preceded by the destruction of the prophets of false gods. Then came the rain. On which - or other - premise was the Uhuru Park prayer meeting premised?