This petition will close. At this time no action can be taken on this petition. There is currently an effort to upgrade TinyMCE from v4 to v5 and it’s a large effort since it requires a lot of work to function in ClassicPress core. There’s also a lot of work that needs to be done to make it backward compatible.
Providing multiple editors isn’t feasible or necessary for the core. If there’s a need, a plugin developer can create a plugin to introduce a new editor to replace TinyMCE. But that needs to be in a plugin, enabled on individual websites as needed so it doesn’t affect all CP users.