Why are there only two Zenos?

[Warmmedown]

There are more than two timelines, but there's only one future Zeno.

 

[GSM123]

Did you watch the show?

 

[Symbiote]

I’m sure there’s a Zeno in each

 

[Dagon]

Did you watch the show?

Don't mess with Dragon Ball fans! We don't watch our own show!

 

[MikaelHarding]

2 timelines?