overlapped penalty: 25-yd penalty possible?

[great]

In NCAA rule.

A team receiver catches the ball thrown, then make touchdown.
Then he spikes his ball too excited, but the HL throw yellow flag immediately(Personal Foul).

Afterwards, turned out there's holding penalty already.

So, TD canceled, 10yd penalty is applied A team.
But more, 15yd penalty also applied, total 25yd penalty.

Is it right ruling?

(In my opinion, only 10yd penalty by holding is acceptable,)


Thank You.