Echo's increased ultimate charge in Duplicate

Some heroes got the increase, others didn’t.

McCree has to land 3 headshots or 2 headshots and a body shot.

Reinhardt still gains 31% ultimate charge with one hit of his hammer pre-nerf and after nerf.

They didn’t touch Duplicate’s ult generation while it is active. They increased the ultimate cost of Duplicate itself.

If you look at “How many ultimates Echo can get?” videos, McCree’s first headshot gave him ~57% charge, his first shot gets 57%, and his second gets half of it.

Why is his the only one like this?

I don’t understand what you mean.

For some odd reason, his first shot gives him full charge, but the next shots give less by about half.