>>96503709ttg isn't bad, it's just that the show changed from action to comedy, and people liked the previous one a lot, they are resented about it being rebooted, also CN broadcasting it everyday at almost all times makes people hate it even further.
Duck tales is the same, the old one was so great, the new just can't surpass the expectations, and the modernization of it for current audience is needed, people that liked the old one will never be fully satisfied with the changes.
TL;DR: only shows that were bad to begin with, are the winners of rebooting.