Not really. There are a lot of creators I watch who only make content once a year. Sometimes they'll have 2 videos a year if they're lucky. With the per creation model, I have no problems supporting them but if it's billed monthly then the price becomes a lot steeper. Alternatively they could reduce the cost to support them but then the fees becomes much higher for both the creator and patreon (29c + 5% IIRC).