I agree about reduced capacity, at least in the short term, maybe until the end of the season. The arrival of streaming for non-league is a little worrying as it gives the FA little incentive to get the usual crowd numbers back in.
Having said all that, the proposal is that non-league will only start with fans, which given the uncertain futures of a lot of clubs without gate receipts is a step in the right direction. Plus if good old Boris wants everything back to normal for November/December then there's every chance we'll see fans back in and the capacity increased as the seasons goes on.