5e seems to have made a conscious design decision to reduce or curtail effects that bypass hitpoints. Of course, some them must stick around by necessity due to the history and iconic status (petrification, paralysis) and this has had a detrimental effect on some monsters. I do not miss some editions (I think 3.0 did this iirc) penchant for turning monsters into virtual archmages in order to make them viable or challenging though(I'm thinking Dragons & Demons here in particular). On the whole, I liked how 4e handled monsters for the most part: they gave them abilities to represent their lore and status that made them interesting challenges, by and large. Though it took them multiple tries to get it right.