I'm not 100% sure how I feel about this change. On one hand, there's less maintenance and therefore more playtime. On the other hand, I have two concerns:
First, what Hypo said about the 1 week long bug correction. There's been many times where there has been a medium sized bug introduced in the Tuesday maintenance and it was fixed 2 days later on Thursday. For now on, I hope they don't wait for the next maintenance before fixing a bug (aka, an entire week).
Secondly, I hope they continue to do 4 blooms a week. We were getting blooms at a pretty okay rate (8 blooms an event with 4 new knights introduced), so we were likely to catch up to DMM where every knight is bloomed. However, the past two weeks where they did one maintenance a week we only got 2 blooms a week. Granted, that was the holidays so maybe that was an exception.