Too bad this is not a RQ2/RQ3 forum, otherwise I would get an experience check in "Incite the crowd"
especially when the rules are supposed to be a clarification and improvement on the previously poorly thought out and explained rules...
This is probably the most important subject. Except that I do not think the original rules were poorly thought out. I think the worst point in the update PDF is that
it fixed what was not broken. Spell resistance worked well before the update, too, it is just that many people had not understood the mechanics of Overcharging. This has been admitted by the authors, too.
I spent hours trying to show to my old group that the different number of CAs depending on DEX was in fact not a problem because you only spent a reaction when your [higher DEX] opponent connected. All gone with the update. With pre-declaration of defenses, master swordsman vs. three trollkin = dead master, as he is likely to use his reactions against the blows that miss. Another regression.
And we could name more.
The point is that many people on the forums stated "the update is ok, or at least it is an improvement". I even ran a poll, remember. So the general consensus is that most things are ok with the update, and everyone can houserule what he dislikes.
The part about runes in Gloranthan games is less a matter of opinion, instead. Glorantha is an established setting where there are some general facts that are acknowledged by everyone, and Your Glorantha May Vary. But if the core rules suggest something that is opposed to acknowledged canon (resurrected Humakti and Storm Bulls integrating Chaos Runes), then we are teaching it wrong to the newbies. But there is another thread to discuss it.
As for why we should give our money to Mongoose for rules we have to modify, I am not willing to comment, as I am an independent publisher