Few comments:

Although generally you could say there are the two types of tilts you descirbed, there's actually a lot more kinds of tilt, to name a few: passive tilt, tight tilt, aggressive tilt, FPS tilt, etc.

I think the two you mentioned are possible causes of tilt, not really tilt in themselves. That is, both running really well and really badly can cause you to tilt.

Tilt is any deviation from your A-game. If you're not playing the absolute best that you can, for whatever reason, you are on tilt.

Also I don't really agree with your everything in your last paragraph. I do agree that if you play too many tables you are not going to focus as much on each play. But there really is no such thing as playing too few tables. It's about balance. The more hands you play per hour (i.e. the more tables you play) the more your hourly rate can be. But your win rate will go down the more tables you play because as we said earlier you have less time to focus on each individual hand, take notes on opponents, analyze situations, etc.

And lastly, the amount of tables in itself really has nothing to do with variance. Variance is a reality of poker, you'll have it regardless of whether you're playing one table or one hundred. If as a result of playing more tables you play tighter and therefore only come up with top tier hands vs your opponents then you might have lower variance but that's a result of playing tighter, not playing more tables.

My $0.2.