Blooming is something that came about to handle how fresh coffee interacts with water. We bloom a brew because there's a lot of gas inside the bean structure that comes out when the hot water hits it. The idea is that that gas prevents some of the extraction early on, and this can be mitigated by wetting the grinds, allowing the gas to escape, before proceeding with the brew. If your coffee is older and doesn't seem to be blooming when you wet it, then just go ahead and brew! Should be fine regardless.