Your first link only says that at the beginning it was only 30%, which isn't a too big surprise considering the chaos at this time and it is talking about non lethal weapons only anyway.
"Jonas Ohman is founder and CEO of Blue-Yellow, a Lithuania-based organization that has been meeting with and supplying frontline units with non-lethal military aid in Ukraine since the start of the conflict with Russia-backed separatists in 2014. Back in April, he estimated that just "30-40%" of the supplies coming across the border reached its final destination. But he says the situation has significantly improved since then and a much larger quantity now gets where it's supposed to go."
"Jonas Ohman is founder and CEO of Blue-Yellow, a Lithuania-based organization that has been meeting with and supplying frontline units with non-lethal military aid in Ukraine since the start of the conflict with Russia-backed separatists in 2014. Back in April, he estimated that just "30-40%" of the supplies coming across the border reached its final destination. But he says the situation has significantly improved since then and a much larger quantity now gets where it's supposed to go."