Among others Rasael, BlackmanD, Nachti and Dedude, created a summoning system more complete and efficient than ever before. This last change that some call "nerf" was made so that such strong summons werent given freely. Spell focus compliment them nicely. Even without the spell focus the summons are stronger and more efficient than before.
If you knew how summons worked in the past and compared them to what they are now your post would be null and void. I would suggest, in order to avoid a discussion about supposed nerfs and reduced abilities, to use the time of this update and find how much better the summons are.
It doesn't matter what the current or past summons stats are...
It is a nerf since it reduces the ability of the MAJORITY of ALL casters, of all types.
It then only boosts a hand picked specialized few builds that will all be made after a %100 RCR and never need to face a foe in battle on the first level after they could finally use that neat new summon IV spell to save their party from death.... Only to find that new reduced HD summon is a wet paper cut out when facing a real foe of the level that spell is gained in natural progression.
This is a change focused on end game RCR characters
