You will not need another 30 hours to level a new character to the same point and also you can play the same base class, hell even the same mastery in so many different ways, that playing a new character can still feel very fresh and exciting.
This is a subject that already got discussed dozens of times and the TL:DR from all of those discussions is:
It’s subjective, there is no “right” or “wrong” way to do it. Some player like having to make decisions that matter, some players don’t.
The respec system already got changed and touched multiple times and with what we have now (minimum respec level and exp catch up) is the best middleground we can get IMO.
In case you are interested here is one of the more heavily discussed threads: