Timing in terms of releasing and 'competing' against movies isn't the issue here. The first season of Loki was going when BW was released. Ms. Marvel was out when LAT was released.
Maybe they want a better distribution of MCU content over the course of the year. Otherwise, there is nothing new in the span of May-November.
Feb - AM3
May - GOTG3
July - Secret Invasion
October - Loki
November - Marvels
But, more the more likely option(or maybe combo of both), they def don't want to overlap the D+ shows to keep people subbing more consistently. Mando season 3 was running in March. For example, if you only care about Mando and Secret Invasion and they are running concurrently, you can sub for a month or two then cancel. If they are running at different times, you will need to sub for 4 months instead of 2.