Doing these things allows for the full use of CC in PVE again rather than the janky solution that SoM used. This also allows higher levels to farm things as they did before. (this is part of the game that SoM harmed)
You may be right, but this is assuming that disallowing people to boost in dungeons is what the playerbase wants.
I’d much rather spam dungeons with a group of other players than solo-quest. SoM’s questing XP boost seemed to promote the latter, and that sort of wasn’t fun enough for me to even bother finishing leveling. Of course, that soon into TBC, I could have just been burnt out from all the WoW Classic content that I had just played!
Anyway, maybe they would offer 2 servers for SoM II: 1 that has gimpy mechanics breakers making dungeon running suck for all the people who prefer that, and the other that doesn’t ruin the fun in the game, and let the people decide where they want to play.
The idea is that they would increase the pool of actual players doing dungeons because they would not be as easily able to get boosts.
If it works, then cool! 
FWIW, I think boosting is fine, and a fun part of the old game. Learning the pulls on a mage is rewarding and fun gameplay, too.
Promoting a realm culture that’s less transactional and more welcoming/helpful also works.
Why would you need the other two if you have this? Players are always eager to concoct reckless game changes that would have all kinds of unforeseen negative consequences impacting normal players.
Because boosting not only takes place in raid dungeons like ZG but also low levels where I (mages) can easily control mobs without any kind of worry.
Killing off boosting culture and getting people back into playing their class will eliminate people who don’t really want to play (payers / RMT’rs) and expand the pool of actual players who’re only doing boosts because they’re stuck doing them.
This is essentially what they did in SoM.
Why do you think SoM was janky?
yes I know, its the only good part of their changes.
The bad part about SoM is that they nerfed CC for high levels who’re farming for certain items. That was a bad change (in a way) also a good change (in a different way)
Honestly, whatever they do its gonna be full of botters and RMT so long as they don’t ban buyers.
What in the world are you talking about? If they are within 7 levels of each other as per your rule number 2, why in the world would you need to require LoS? Ok, the mage and his party member are out in an open field… did the LoS requirement change anything? No, of course not. Meanwhile half the group killing the last boss in Shadowfang Keep didn’t get xp because of your weird rules list.
Your rules… make no sense. The fact that mages are good at aoe changes nothing.
Line of sight almost 100% nerfs Mara boosting and ZG. This eliminates a lot of “Creative” use of game mechanics boosts.
At what cost to the normal player?
edit: One the the devs have nearly always understood but the players never do… don’t throw out the baby with the bathwater. Don’t change the game in ways that punish regular players for just playing the game in order to punish the people abusing the game.
Essentially zero, normal players are in the action.
I just gave you the perfect example. On any given fight half the party in Shadowfang Keep is gonna be out of LoS of the boss when they die. If I sat down I could probably think of hundreds or even thousands of situations where being out of LoS during a fight is not only beneficial but encouraged… maybe required. It’s a preposterous rule.
If you’re not in line to CAST a spell you’re not contributing, you should at that point get Zero XP for not participation.
These are terrible suggestions.
I like the SoM changes. The “janky solution” is warranted to nerf mages a bit. They’re too dang good at farmin and everyone knows it. 
This is playing with so much fire for casters who need mana and tanks
I’m starting to believe this is your highest level character.
well at least you see it…
Yeah we need mana, but tanks? LOL dont blink into a wall and this is not a problem.