There is in an inherent tension to all researchers: if funding is <20% or even < 10%, you have to get many proposals, either resubmits, or different projects, to get funded. Yet, just sending in any old thing without sufficient attention to quality, means that you can put in 100, and none will ever be funded.
Everyone always says: you need to get your best possible proposal in as often as possible.
I'm just seeing lots of proposals that are just not clear. It's not necessarily grantsmanship. Sometimes its the writing of explaining what the PI wants to do. Sometimes its the logic of what is being proposed. Sometimes it's either proposing to do too much, or writing too much.
Advice? get the meanest, nastiest, cruelest colleague you know to rip apart your proposal before you submit. If not the whole thing, at least the SA's.