Super suggestion!

It is not latency lag he is referring to. It is the server capacity lag, the server's hardware cannot handle a great deal of load.

 

ah okay. In that problem server need to be restarted.

 

Alright lets do this again

1. What you said there makes no sense at all really. It all depends on when he decided to take the measurement and who was on at the time. I very much doubt he takes the average throughout the day for several days to see what the true class average is. The dude gets on once and claims a statistic. Besides, there are people who change classes because they get bored of it and try something else (change class, change race, change server, all of that affects the statistic, none of it means he left). You assume just because they don't play their character they quit or some other templar should join the server to replace him? Doesn't work that way
2. AM/EF is an alliance instance, it takes 12 people, meaning each and every one of them takes much longer to gear up than in TS even if rates were 100% (and they aren't). On retail I see eternal drop virtually every run in TS, on AM/EF I saw a part drop once so far. Also, at the time it was new so nobody had the gear. Of course a lot of people will be running it. There was a time lot of people ran TS just because they didn't have the gear, they do now. It is not a logical comparison. EDIT: By the way TS has a cooldown of up to 2 days and takes under 2 hours to run even on retail, here much less. Of couse you won't find so many people in it when they have cooldowns. AM/EF can be run daily. You also see parties advertised for it for longer since it does take twice as many people to do it.
3. Ok on retail sarpan is a toggle, so is Tia, it is a pvp map for half a day, not sure how they do it here. Either way, once again people run that place for Kahrun tokens to get Kahrun set. When they get it there isn't much of a reason to be there is there. It is a pvp server and as you said, they can't pvp there, why stay. People gear up over time and no longer need the gear. And again, it depends what time of the day or what day you check. Just because one moment there aren't many doesn't mean more won't be there later.
4. Why do you assume absolutely everything has to be constant? Since when does the world work that way. Do you play exactly the same time of the day exactly the same days for exactly as long exactly the same class on exactly the same server? Seriously? People aren't robots, how about the fact that right now it is exam time for a lot of people and they get off aion to study? How about changing preferences? By the way the number of people setting invisible is not constant and a class search does not show you invisible people. You cannot have a clue as to how many people are really online.