I was like I wanted to faint after seeing the post of @amr008 about this case of engagement program.
I don't think that should happen even though it has two effect to hive community but they the reward should be reduced but not to be stopped.
The negative effect of the end of engagement program is that new members won't be attracted except they have money to invest in it and pob needs to circulate to make the community to be strong and to avoid rugpull.