I don't think the long spear or pike are overpowered, not even a bit. And there is no overpopulation of these weapons either. But the remove of block from these weapons is long overdue. Not to nerf them, but because it doesn't make sense to be able to block with weapons like that and because they don't need block.
Let's be honest, the pike and especially the long spear can be quite effective in large groups. Removing block from them wouldn't change that, they would still be just as effective as they were before, the players just have to pay more attention to footwork and they have to bring sideweapons if they want to survive without team support. (Which most pike/long spear users do anyway)
This is not at all how it works. I am a longspear user and I have a very good eye for my team and mostly stick in the huge blob of my team. All it takes though is one shielder, of which we have a lot these days, and you have to block. They just walk up to you and leftswing at your face, this happens all the time because shielders hate my guts and because they happen to have a shield. You backwalk, stab at them until your teammates decide to help you out. Not being able to block would mean that you have to drop the longspear, get hit once while switching weapons, and then you have to go find your longspear on the floor again, only for this process to repeat. If this happens 3 times, you're dead, because they get a free hit everytime, even when you are actually fast enough with dropping the longspear.
You don't have to be a genius to figure out that this will obliterate these weapons.
Where? Give me some of that!
As a 7 ps, 167 wpf, MW longspear user I can assure you that my damage output is ridiculously high sometimes. I say sometimes, cause at other times it is ridiculously low. Speedbonus has too much of an effect on the weapon. I occasionally oneshot shielders in medium armour, I do stab at faces and hold a lot though. I also occasionally need 4 stabs to kill a peasant in cloth armor.