That comment was with respect to tournament players. "Less time or less dedication" isn't really an excuse for the hardcore competitive players.I do not see it that clear-cut. The dose makes the poison. Multiple adjustments at regular intervals might overstrain the players with less time or less dedication, leading to additional unsureness and frustration for them
If you're looking at casuals specifically, the time sensitivity isn't really that relevant. If they choose to put less time or dedication towards the game, that's their choice. They can catch up when they get some free time, but most likely, changes like that won't affect them and their general experience with the game much, anyway.