I suspect this will be met with a rather large yawn.
It may well even have the opposite effect than what the WTS wants. For the past 2 years, they had the 30-hour requirement just one month a year. There was enormous peer pressure to "join the group" and make a big effort for that one month.
Now, depending on when the CO visits, a congregation may have up to 4 months in a year in which 30 hours is good enough.
1) No more peer pressure to join the group and get 30 hours: "Oh my schedule doesn't allow it this month - I'll be sure <wink wink> to do it the next time a 30 hour month comes around."
2) If you are the type that auxiliary pioneers a few times a year, why bother to do it in a 50 hour month? Wait a month or 2 and you can do just 30. So for 8, 9, 10 months for the year, there will be far far fewer aux. pios.
Eventually, as the numbers come in and the WTS does its analysis, 30 hours will be the new requirement. And quite likely, at the same time regular pioneering requirements will drop to 60, or conceivably even 50 hours per month.
Jehovah's celestial chariot appears to be misfiring on a few cylinders.